全球市场营销重要知识点罗列（中英文）Global marketing Chapter one掌握：营销概念：Although marketing is universal, marketing practice, of course,varies from country to country.了解：The market conceptThe New concept of marketing and the Four Ps: shifted the focus of marketing from the product to the customer.The strategic 1.concept of marketing: shifted the focus of marketing from the customer or the product to the customer in the context of the broader external environment.2.the strategic concept of marketing has shifted the focus of marketing from a microeconomics maximization paradigm to a focus of managing strategic partnerships and positioning the firm between vendors and customers in the value chain with the aim and purpose of creating value for customers.掌握：THE THREE PRINCIPLES OF MARKETING1.Customer value and the value equationThe task of marketing is to create customer value that is greater than the value created by competitors./doc/1312473186.html,petitive or differential advantageThe advantage can exist in any element of the company’s offer: the product, the price, the advertising and point-of-sale promotion, or the distribution of the product.V=B/P3.FocusThe third marketing principle is focus, or the concentration of attention.掌握：全球本土化概念（global localization）：it means asuccessful global marketer must have the ability to “think globally and act locally”掌握：MANAGEMENT ORIENTATION1.Ethnocentric (母国中心)---------international companyHome country is superior, sees similarities in foreign countries2.Polycentric（东道国中心）-----------multinational companyEach host country is unique sees differences in foreign countries3.Regiocentric（区域中心）----------global companySees similarities and differences in the world region; is ethnocentric or polycentric the rest of the world.4.Geocentric （世界中心）-------------transnational companyWorldview, sees similarities and differences in home and host countries.了解：Leverage定义：Leverage is simply some type of advantage that a company enjoys by virtue of the fact that it conducts business in more than one country.类型：1.experience transfers(经验移植) 2.Scale economies （规模经济：可降低成本）3.resource utilization （资源利用）4.global strategy（全球化战略）Chapter two了解ECONOMIC SYSTEMS1.Market allocationA market allocation system is one that relies on consumers to allocate resources.Consumers“write” the economic plan by deciding what will be produced by whom./doc/1312473186.html,mand or centralplan allocationIn a command allocation system, the state has broad powers to serve the public interest.These include deciding which products to make and how to make them.3. Mixed allocation了解STAGES OF MARKET DEVELOMENTUsing GNP as a base , we have divided global markets into four categories.1.low-income countries(also known as preindustrial countries)2.lower-middle-income countries(also known as less developed countries or LDCs)3.upper-middle-income countries(also known as industrializing countries)4.high-income countries(also known as advanced , industrialized, postindustrial countries) chapter three 了解：BASIC ASPERTS OF SOCIETY AND CULTURE①It is learned, not innate②The various facts of culture are interrelated, influence or change one aspect of a culture and everything else is affected.③It is shared by members of groups and defines the boundaries between different groups.掌握：High and low context cultures强交际环境文化和弱交际环境文化的对比(看73页表) In low context cultures,①messages have to be explicit.②A person's word is not t o be relied on.③Paperwork is important.In high context cultures,①less information is contained in the verbal part of message.② A person's value, position, background are crucial.掌握：Maslow's Hierarchy of Needs 马斯洛需求层次理论①physiological 生理需求②safety 安全需求③social 社交需求④esteem 尊重⑤self-actualization 自我实现掌握：Hofstede Framework 霍夫斯诺德构架（看细节）①individualism versus collectivism 个人主义与集体主义②power distance 权力距离③uncertainty avoidance 不确定性规避⑤masculinity versus femininity 男权主义相对女权主义了解：THE SELF-REFERENCE CRITERION AND PERCEPTION As we have shown, a person’s perception of market needs is framed by his or her own cultural experience.了解：ENVIRONMENTAL SENSITIVITY(了解80页表格)Environmental sensitivity is the extent to which products must be adapted to the culture-specific needs of different national markets. （对环境中最敏感的东西是food）Chapter four了解POLITICAL RISK （经济发达阶段和政治风险的关系，经济越不发达政治风险越高）了解征用（EXPROPRIATION）定义：Expropriation refers to governmental action to dispossess a company or investor.没收（CONPENSATION）定义：compensation is generally provided to foreign investors,although not often in the “prompt effective ,and adequate”manner provided for by international standard.国有化（NATIONALIZATION）定义：Nationalization occurs ifownership of the property or assets in question is transferred to the host government.了解：Differences of the two systems in solving commercial disputes两种法律体系在解决商务纠纷中的区别common law versus civil law(code law)①Under common law, commercial disputes are subjected to either civil or commercial laws. Under code law, commercial disputes are subjected to the commercial code.②Under common law, industrial property right based on proof of agreement.Under code law, industrial property right based on notarization or registration③Under common law, Performance of contract: Act of God/act of nature means extraordinary happenings not reasonably anticipated.Under code law, Performance of contract: Act of God is extended to include unavoidable interferences such as strike or riots (Force Majeure)掌握：Three bases for jurisdiction in resolving private international disputes处理国际争端的3种基本司法程序①negotiation调解协商②Arbitration仲裁③Litigation 诉讼Chapter five掌握：DIFFUSION THEORY(传播理论)（AIETA）Five stages of the adoption process 对新产品接纳过程的五个阶段①Awareness 知晓阶段②Interest 感兴趣阶段③Evaluation 评价阶段④Trial 试用阶段⑤Adoption 采纳阶段Five types of adopter categories 新产品接纳者的5种类型②innovators②early adopters(Early adopters are the most influential people in their communities,even more than the innovators. Thus. The early adopters are a critical group in the adoption process )③early majority④late majority⑤laggards (落后者)掌握：Characteristics of innovations(创新的特征)1.Relative advantage（相对优势）/doc/1312473186.html,patibility（兼容性）/doc/1312473186.html,plexity（复杂性）4.Divisibility（可分性）/doc/1312473186.html,municability（可交流性）Chapter six了解Information subject agenda （理解168页表格）了解SCANNING MODES（搜寻模式）: SURVEILLANCE AND SEARCH监视的两种类型Surveillance include: viewing and monitoring 了解营销信息的主要来源（sources of market information）：1.human sources (人)2.documentary sources（文档资源）3.internet sources（因特网来源）4. Direct perception（直接感知）了解FORMAL MARKETING RESEARCH（正式的市场调研）Step 1: Identifying the research problemStep 2: Developing a research planStep 3: Collecting data (看细节secondary data, primary data, survey research)Step 4: Analyzing research dataStep 5: Presenting the findingsChapter seven掌握市场细分的定义: Market segmentation is the process of subdividing a market into distinct subsets of customers that behave in the same way or have similar needs.掌握全球市场细分的定义：Global market segmentation is the process of dividing the world market into distinct subsets of customers that behave in the same way or have similar needs.掌握全球市场的主要细分的标准（criteria）(知道归属)：1.Geographic segmentation2.Demographic segmentation3.Psychographic segmentation4.Behavior segmentation5.Benefit segmentation掌握全球目标市场确定的定义：T argeting is the act of evaluating and comparing the identified groups and then selecting one or more of them as the prospect(s) with the highest potential.掌握选择目标市场的标准（criteria）:1.current segment size and growth potential2.potential competition/doc/1312473186.html,patibility and feasibility掌握选择目标市场的策略：1.standardized global marketing2.concentrated global marketing3.differentiated global marketing掌握全球产品定位（Global product positioning）定义:Positioning is the location of your product in the mind of your customer.Chapter eight掌握出口市场选择的六大标准（MARKET SELECTION CRITERIA）：1.market potential(市场潜量)2.market access (市场潜入因素)3.shipping costs(运输成本及时间)4.potential competition(潜在竞争)5.service requirement(服务要求)6.product fit(产品适应性)了解ENTRY AND EXPANSION DECISION MODEL(进入和扩张决策模型，第237页)掌握依托营销（Piggyback Marketing）的定义：The manufacturer using the piggyback arrangement does so at a cost that is much lower than that required for any direct arrangement. Successful piggyback marketing requires that the combined product lines be complement. They must appeal to the same customers, and they must not be competitive with each other.掌握许可贸易（licensing）的定义:Licensing can be defined as a contractual arrangement whereby one company(the licensee) makes an asset available to another company(the licensing) in exchange for royalties, license fees, or some other form of compensation. The licensed asset may be a patent, trade secret, or company name.其中，Franchising is a form of licensing了解Joint Ventures（第247页）了解市场扩张战略（5 MARKET EXPANSION STRATEGIES）:1.Strategy one: concentrates on a few segments in a few countries.2.Strategy two: country concentration and segment diversification3.Strategy three: country diversification and market segment concentration4.Strategy four: country and segment diversificationChapter nine了解全球战略联盟的三个特点：1.The participants remain independent subsequent to the formation of the alliance2.The participants share the benefits of the alliance as well as control over the performance ofassigned tasks.3.The participants make ongoing contributions in technology, products, and other key strategicareas.了解全球战略同盟的六个特性（attributes）（第265页）在日本，战略联盟被称为综合商社在韩国，战略联盟被称为财阀Chapter ten掌握影响产业竞争的五种力量（Forces Influencing Competition in a Industry）：1.Thread of new entrants2.Rivalry Among Existing Competitors3.Bargaining Power of Suppliers4.Bargaining Power of Buyers5.thread of Substitute Product or Services掌握新加入者的五种威胁（thread of new entrants）：1.Economies of scales(规模经济)2.Product differentiation(产品差异性)3.Capital requirements(资本要求)4.Switching costs(转换成本)5.Access to distribution channels(获取分销渠道的途径)/doc/1312473186.html,ernment policy(政府政策)7.Established firms may also enjoy cost advantages independent of the scale economies(老公司享有的与规模经济无关的成本优势)掌握Porter’s basic thesis(Porter’s diamond): four national attributes of a nation shape the environment in which local firms compete.波特钻石理论中认为决定一国本地公司竞争环境的四大特征：①factor condit ions②demand conditions③related and supporting industries④firm strategy, structure, rivalryAnd two influencers: Governments and chance其中，了解要素来源（factor conditions）的分类1.Human resources2.Physical resources3.Knowledge resources4.Capital resources5.Infrastructure resources掌握要素资源的类型1.Basic versus advanced factors（基本要素与高级要素）2.Generalized（通用要素是前提条件）versus specialized factors（专门要素是企业真正竞争要素的来源）掌握创造竞争优势的一般战略：1.Broad market strategy 大市场战略Cost-Leadership Advantage（成本领先）Differentiation（差异化）2.Narrow target strategies（缩小目标范围）Focused differentiation （差异专注）Cost focus（成本专注）了解日本人创新性竞争的策略：/doc/1312473186.html,yers of advantage （优势层）2.Loose bricks（松动的砖头）3.Changing the rules（改变规则）4.Collaborating（合作）5.Hypercompetition （超级竞争）CHAPTER11了解产品含义（了解产品属于哪类）Local products(本土产品)：A local product is available in a portion of a national market. National products（国家产品）: A national product is one that, in the context o a particular company is offered in a single national market.International products(国际产品): international products are offered in multinational,regional markets.Global products（全球产品）：global products are offered in global markets了解产品与品牌的不同（了解334页的全球品牌的特征--------地球图）A global product differs from a global brand in one important respect: it does not carry the same name and image from country to country.掌握产品定位（product positioning）的定义：product positioning is a communications strategy based on the notion of mental "space": positioning refers to the act of locating a brandin customers' minds over and against other products in terms of product attributes and benefits that the brand does and does not offer.掌握产品定位的一般策略（general strategies for positioning products）1.attribute or benefit （属性与性能）2.Quality/price（质量价格）/doc/1312473186.html,e/user （使用和使用者）4.High-tech positioning （高科技定位）5.High-touch positioning （高感性定位）掌握产品设计的四个因素（Product design considerations）Global market need to consider four factors when making product design decision:1. Preferences （偏好）2. Cost （成本）3. Laws and regulations（法律法规）4. Compatibility（兼容性）5. Labeling and instructions （标签以及用法说明）了解原产国的态度的（coo：country of origin）定义：Country of origin (often abbreviated to COO), is the country of manufacture, production, or growth where an article or product comes from. There are differing rules of origin under various national laws and international treaties掌握产品地理扩张的主要策略（5个）Strategy1:product/communication extension(dual extension) Strategy2:product extension/communication adaptationStrategy3:product adaptation/communication extensionStrategy4:dual adaptationStrategy5:product invention理解公司的三个阶段（How to choose a strategy）1.cave dweller.（洞穴居住着）2.Naive nationalist（天真的国家主义者）3.Globally sensitive（全球性敏感者）了解新产品开发的几层含义（New products in global marketing）:Newness can be assessed in t h e c o n t e x t o f t h e p r o d u c t i t s e l f,t h e o r g a n i z at i o n,a n d t h e m a r ke t.1.an entirely new invention or innovation2. a line extension3.newness may also be organizational4.an existing product that is new to a company may be new to a particular market了解新产品开发的几个步骤：1.Identifying new-product ideas2.New-product development location3.Testing new products in national marketsCHAPTER 12掌握环境对定价决策的影响（Environmental influences on pricing decisions）1.Currency fluctuations（货币的不稳定性）2.Exchange rate clauses（汇率条款）3.Pricing in an inflationary environment（在通货膨胀的环境里定价）/doc/1312473186.html,ernment controls and subsidies（政府控制和补贴）/doc/1312473186.html,petitive behavior （竞争行为）6.Price and quality relationships（价格与质量的关系）掌握全球定价目标及战略（Global pricing objectives andstrategies）1. 掌握市场撇脂（Market skimming）定义：the market skimming pricing strategy is a deliberate attempt to reach a market segment that is willing to pay a premium price for a product.2. 掌握渗透式定价（Penetration pricing）定义：penetration pricing uses price as a competitive weapon to gain market position.3. 掌握市场保持（Market holding）定义：the market holding strategy is frequently adopted by companies that want to maintain their share of the market.4. 掌握成本加成价格升级Cost plus/price escalation掌握价格升级的定义：Price escalation is the increase in a product’s price as tr ansportation, duty, and distributor margins are added to the factory price.掌握灰色市场（Grey market goods）条件和定义定义：gray market goods are trademarked products that are exported from one country to another, where they are sold by unauthorized persons or organizations.条件：The marketing opportunity that presents itself requires gray market goods to be priced lower than goods sold by authorized distributors or domestically produced goods.了解倾销(Dumping) 定义：Dumping is an important global pricing strategy issue.了解转移定价（TRANSFER PRICING）的定义：transfer pricing refers to the pricing of goods and services bought and sold by operating units or divisions of a single company.了解几种转移定价的方法：The alternatives are(1)cost-based transfer pricing,(2).market-based transfer pricing（目的基于市场竞争需要的转移定价）Market-based transfer price了解定义：a market-based transfer price is derived from the price required to be competitive in the international market.(3).negotiated prices.掌握三种定价策略（GLOBAL PRICING-THREE POLICY ALTERNATIVES）1.Extension/ethnocentric2.Adaptation/polycentric3.Invention/geocentricCHAPTER 13掌握分销渠道（Channel of distribution）的定义：Channel of distribution American marketing association defines channel of distribution as"an organized network of agencies and institutions which, in combination, perform all the activities required to link producers withusers to accomplish the marketing task."掌握分销(marketing channels)的目的: The purpose of marketing channels is to create utility for customers.掌握渠道的效用：The major categories of channel utility are place (the availability of a product or service in a location that is convenient to a potential customer);time(the availability of a product or service when desired by a customer);form(the product is processed, prepared, and ready to use and in proper condition);and information(answers to questions and general communication about useful product features and benefits are available).了解两种渠道：1.Direct involvement2.Indirect involvement掌握影响渠道因素（CHANNEL OBJECTIVES AND CONSTRAINTS）1. customers characteristics2. products characteristics3. middlemen characteristics4. environment characteristics掌握中间商（Middleman characteristics）的定义：Channel strategy must recognize the characteristics of existing middlemen. Middlemen are in business to maximize their own profit and not that of the manufacturer. They are notorious for cherry picking.了解cherry picking的定义：that is, the practice of taking orders from manufacturers whose products and brands are in demand to avoid any real selling effort for a manufacturer’s products that may required push.DISTRIBUTION CHANNELS:TERMINOLOGY AND STRUCTURE 掌握消费品（CONSUMER PRODUCTS）的主要渠道1.DOOR-TO-DOOR SELLING2.MANUFACTURER-OWNED STORE3.FRANCHISE OPERATIONS/doc/1312473186.html,BINATION STUCTURES掌握工业产品（INDUSTRIAL PRODUCTS）的主要渠道1.M-manufacturer2. W-wholesaler3. MSF-manufacturer's sales force4. D or A-distributor or agentCHAPTER 14掌握全球广告的定义：Global advertising is the use of the same advertising appeals, messages,art, copy, photographs, stories, and video segments in multiple-country markets.了解global advertising content: the extension versus adoption debate了解选择广告代理商的主要因素：In selecting an advertising agency, the following issues should be considered: Company organization, Area coverage, Buyer perception.CHAPTER 15（重点看选择题）掌握几种主要的促销方式（GLOBAL PROMOTION）Advertising（广告）Public Relations and Publicity （公共关系与公众度）Personal selling （个人推销）Sales promotion (营业促销)Direct Marketing（直复营销）Trade Shows and Exhibitions（贸易展示和展会）Sponsorship Promotion （赞助促销）了解公共关系的主要作用：foster goodwill and understanding among constituents both inside and outside the company.还有宣传的特征:Publicity is a nonpaid form of communication (unearned media)掌握推销(personal selling)的定义: personal selling is two-way,personal communication between a company representative and a potential customer as well as back to the company. 掌握推销的主要过程:The selling process is typically divided into several stages:prospecting, preapproaching, aaproaching, presenting, problem solying, handing objections, closing the sale, and following up.了解SALES PROMOTIONTrade promotions are designed to increases productavailability in distribution channels.了解DIRECT MARKETINGThe use of direct marketing is growing rapidly in many parts of the world due to increased use of computer databases, credit cards, and toll-free numbers, as well as changing life-styles.了解TRADE SHOWS AND EXHIBITIONSTrade shows and exhibitions are other promotion vehicles that are increasingly important in the promotional mix, especially for industrial products and in the international marketplace.了解SPONSORSHIP PROMOTION特点：Sponsorship can be used to increase awareness and esteem, to build the brand identification, to enhance the brand’s positioning and sales,and to circumvent advertising restrictions in some countries.。
市场营销英语教学大纲《市场营销英语》教学大纲（MARKETING ENGLISH）一、理论教学内容1．Introduction to marketing（市场营销概述） 2. Marketing planning (市场营销计划)3. The marketing environment（市场营销环境）4. Marketing research （市场调研）5. Products（产品）6. Price（定价）7. Distribution（分销）8. Promotion（促销）9. Customer service（顾客服务）10. International marketing（国际市场营销）二、实践教学内容1. Cases analysis: a marketing plan, a marketing research report, how to introduce a product to a supermarket, an advertising champion, a customer visit2. Make a questionnaire3. Make a promotion plan4. Write an order letter5. Make a marketing plan三、学时分配教学内容 Introduction to marketing （市场营销概述）Marketing planning (市场营销计划) The marketing environment（市场营销环境） Marketing research （市场调研） Products （产品） Price （定价）Distribution （分销） Promotion （促销） Customer service （顾客服务）International marketing （国际市场营销） Examination (机动、考试) 合计学时数 4 4 4 4 4 4 4 16 4 4 8 804 4 4 4 4 实践网上课堂《市场营销英语》教学大纲说明（MARKETING ENGLISH）一、本课程性质、作用和任务随着社会经济的不断发展，商品生产和贸易在经济生活中的地位日益重要，市场营销的重要性日益突出，而经济全球化的趋势也使得市场营销专业的毕业生必须具备一定的专业外语知识，能够较好地进行企业内部外部的有效的沟通。
市场营销策划方案的英文1. Executive SummaryThis marketing plan outlines the key strategies and tactics to promote a healthy food delivery service. The aim is to attract health-conscious consumers who value convenience and quality in their meals. The plan includes a thorough analysis of the target market, a competitive analysis, and a detailed marketing strategy to reach and engage potential customers.2. IntroductionWith the growing trend of health consciousness and busy lifestyles, there is an increasing demand for healthy food options that can be conveniently delivered. Our healthy food delivery service aims to meet this demand by providing nutritious and delicious meals delivered directly to customers' doorsteps.3. Target Market AnalysisOur target market consists of health-conscious individuals aged 25-45 who lead busy lives and prioritize their health and wellbeing. This demographic is more likely to choose healthier food options and value convenience and quality. Through in-depth market research and analysis, we have identified their needs, preferences, and buying behavior.4. Competitive AnalysisThe healthy food delivery industry is becoming increasingly competitive. The key competitors include established companies like Freshly and HelloFresh, as well as local meal prep services. We conducted a comprehensive analysis of their strengths, weaknesses, and marketing strategies to identify areas of opportunity and determine how we can differentiate ourselves in the market.5. Marketing ObjectivesOur marketing objectives are as follows:- Increase brand awareness and visibility in the target market by 30% within the first year.- Acquire 1,000 customers within the first six months of launch.- Achieve a 15% conversion rate from website visits to orders within the first year.- Increase customer retention rate by 20% within the first year.6. Marketing StrategyOur marketing strategy consists of several key components:- Developing a strong brand identity that reflects our values and resonates with our target market.- Creating a user-friendly website and mobile app for easy ordering and a personalized customer experience.- Implementing targeted digital marketing campaigns to reach potential customers through social media, search engine optimization, and pay-per-click advertising.- Collaborating with influencers and health influencers to promote the service and create buzz.- Utilizing email marketing to nurture leads and keep customers engaged.- Offering discounts and promotions to incentivize trial and repeat purchases.- Implementing a referral program to encourage word-of-mouth marketing.7. Marketing TacticsTo execute our marketing strategy, we will implement the following tactics:- Develop a brand identity and create a cohesive brand image across all marketing channels. - Optimize our website and mobile app for search engines and user experience.- Create engaging and informative content on social media platforms to build a loyal community.- Collaborate with influencers and health influencers to promote our service and reach their followers.- Implement targeted email marketing campaigns to nurture leads and encourage repeat purchases.- Offer discounts and promotions to incentivize trial purchases.- Implement a referral program to encourage customers to refer their friends and family. 8. Budget and TimelineOur marketing budget for the first year is $100,000, allocated as follows:- Website and App Development: $30,000- Digital Marketing: $40,000- Influencer Collaborations: $15,000- Email Marketing: $5,000- Promotions and Discounts: $10,0009. Evaluation and MetricsTo evaluate the effectiveness of our marketing efforts, we will track the following metrics: - Brand awareness and visibility through website traffic and social media engagement.- Customer acquisition through the number of new customers acquired.- Conversion rate through website visits to orders.- Customer retention rate through repeat purchases and customer feedback.10. ConclusionIn conclusion, this marketing plan outlines a comprehensive strategy to promote a healthy food delivery service targeting health-conscious individuals. By understanding our target market, analyzing our competitors, and implementing effective marketing tactics, we aim to increase brand awareness, acquire new customers, and achieve long-term success in the market.。
Marketing市场营销(英文版)Marketing, also known as marketings, is a crucial aspect of any business. It involves promoting and selling products or services to customers. Effective marketing strategies help businesses expand their customer base, increase brand awareness, and ultimately drive sales.One of the key components of marketing is understanding the target market. This involves researching and analyzing the demographics, preferences, and behaviors of potential customers. With this information, businesses can develop tailored marketing campaigns to attract the right audience. By focusing on the needs and desires of their target market, companies can ensure their marketing efforts are both effective and efficient.Another important aspect of marketing is branding. Developing a strong brand identity is essential for businesses to differentiate themselves from competitors. This is done through various elements such as logos, slogans, and brand messaging. A well-defined brand helps businesses build trust and credibility with customers, leading to increased loyalty and repeat purchases.In today's digital age, online marketing has become increasingly important. With the growing use of technology and internet, businesses have unprecedented opportunities to reach a wider audience. Online marketing strategies include social media marketing, search engine optimization (SEO), content marketing, and email marketing. These tools enable businesses to connect with customers on platforms they frequently use, increasing their visibility and engagement.Another effective marketing technique is influencer marketing.This involves collaborating with influential individuals, such as celebrities or social media personalities, to promote products or services. By leveraging the popularity and credibility of these influencers, businesses can reach a larger audience and gain credibility and trust from their followers.Marketing also involves analyzing and measuring the effectiveness of marketing campaigns. This is done through metrics such as return on investment (ROI), customer acquisition cost (CAC), and customer lifetime value (CLTV). By tracking these metrics, businesses can evaluate the success of their marketing efforts and make any necessary adjustments to optimize their strategies.In conclusion, marketing plays a vital role in business success. It helps businesses understand their target market, build strong brands, and reach a wider audience through various channels. By implementing effective marketing strategies, businesses can increase their customer base, boost brand awareness, and ultimately drive sales.在一个竞争激烈的商业环境中，有效的营销策略是企业取得成功的关键。
