Definition

2. 因牙体缺损的邻接不良或食物嵌塞严重， 需恢复邻面接触点者。 Tooth defect with bad proximal relation and food impaction need
recover proximal contact.
3. 固定桥的基牙已有龋洞或要放置栓体、 栓槽附着体者，可以设计嵌体作为基础 固位体。 Abutment which has caries or attachment can use inlay as retainer.
患牙预备的方法(method)
1. 合面பைடு நூலகம்体的牙体预备
(1)去龋(remove caries tissue) (2)预防性扩展(preventive extension) (3)固位形抗力形的制备(preparation for retention and resistance form)
2. 邻合嵌体的牙体预备
嵌体的种类(classification)
1. 按嵌体所修复牙面不同分:
单面嵌体(single-surface inlay)
双面嵌体(two-surface inlay)
多面嵌体(multi-surface inlay)
嵌体根据覆盖牙面分类
2. 按嵌体部位不同分：
近中合嵌体- - MO inlay
4.对于美观及长期效果要求高的年轻患者
或心理素质不理想的患者，前牙缺损慎 用嵌体修复。 Young patient with high requirement for appearance and long-term effect, patient with bad psychology,tooth defect of anterior tooth.

Write an essay in which you define what it means to be a successful student.
What is definition?
To tell the readers what it is, and explain the meaning A method we use to distinguish one thing from all other things A statement of the meaning, nature or limits of something A method of making clear, of identifying the meaning of a word or phrase
Unit 6 Nature and Thought
Warm-up activity
What does it mean to be a successful student? What qualities and attributes does a successful student possess?
Use of an example to serve as a definition Give your readers a brief explanation.
Assignment
The term hero is used so much that it has truly lost its meaning. In this extended definition essay, you are to identify someone who has been a hero in your life and explain why that person is a hero. Your definition may identify sensory characteristics of your hero, compare your hero to another person who is not a hero, and compare your hero to the dictinonary definition.

Definition English Essay Writing StepsThe art of composing a definition English essay lies in the precise and comprehensive exploration of a concept, term, or idea. This genre of writing demands a meticulous approach, ensuring that the reader gains a thorough understanding of the subject matter. Here, we delve into the steps that form the foundation of a well-structured definition essay.**1. Selecting the Topic**Choosing a topic is the initial and crucial step. It should be something that interests you and is broad enough to allow for in-depth exploration. The topic should also lend itself to multiple perspectives, enabling a richer and more nuanced discussion.**2. Understanding the Definition**Before embarking on the essay, it is essential to have a clear understanding of the term or concept's dictionary definition. This serves as the starting point for your exploration and sets the boundaries for your discussion.**3. Researching and Gathering Information**Research is vital to gain a comprehensive understanding of the topic. Explore various sources, including books, articles, online resources, and interviews, to gather information from different perspectives. Pay attention to examples, illustrations, and anecdotes that can enhance your essay's readability and depth.**4. Organizing the Essay**Structuring the essay is key to its coherence and readability. Begin with a captivating introduction that defines the term and outlines the essay's main points. The body paragraphs should delve into different aspects of the definition, supported by evidence and examples. Finally, conclude with a summary that ties the essay together and leaves a lasting impression.**5. Writing the Introduction**In the introduction, introduce the term or concept and provide a brief overview of its significance. Hook the reader's attention with an intriguing fact or anecdote related to the topic. End the introduction with a clear statement of the essay's purpose and the main points you will discuss.**6. Developing the Body Paragraphs**Each body paragraph should focus on a specific aspect of the definition. Start by stating the main point of the paragraph, followed by supporting evidence and examples. Use transitional phrases to smoothly connect ideas and maintain the essay's flow.**7. Writing the Conclusion**The conclusion should summarize the main points discussed in the essay and provide a final perspective on the topic. Avoid introducing new information in the conclusion and instead focus on tying up loose ends and leaving the reader with a lasting impression.**8. Revising and Editing**Revision and editing are crucial to enhancing the essay's quality. Check for grammar, spelling, and punctuation errors. Ensure that the essay flows smoothly and that the ideas are presented coherently. Seek feedback from peers or teachers to identify areas for improvement. **定义英语作文写作步骤**撰写定义性英语作文的艺术在于对一个概念、术语或想法进行精确而全面的探讨。

7. End the definition essay by restating the key distinguishing features
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What is the difference between Denotation and Connotation ?
Denotative definitions are frequently referred to as “dictionary definitions”, or the literal meaning of a concept.
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5. Using Etymologies ([ˌetəˈmɔlədʒi:z]词源说明 )
e.g. hijack
1923, Amer. Eng., from high (way) + jacker "one who holds up." Originally "to rob (a bootlegger, smuggler, etc.) in transit;" sense of "seizing an aircraft in flight" is 1968 (also in 1961 variant skyjack), extended 1970s to any form of public transportation.
Connotation is an idea or thing implied by or associated with a word or thing.
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A good definition meets four criteria:
1. The definition provides the correct general category of the target , being neither too large nor too small.