虽然as well as 和and 都用于并列连接对等的成分，但as well as 不等通过于and，具体的区别如下：
一、A as well as B 侧重点是A，而A and B 中的A 和B 是一样的重要，例如：
They have spoken to Bob as well as Jim.
他们不仅跟吉姆还有鲍勃谈过了。
解析：此句强调的重点是Bob。
On the New Year’s Eve, she likes singing as well as dancing.
除夕夜，她不仅喜欢跳舞，还喜欢唱歌。
解析：此句强调的重点是singing。
又如：
My bike and the car have broken down today.
我的自行车和汽车今天坏了。
解析：此句没有强调，表明自行车和汽车都坏了。
My bike, as well as, the car has broken down today.不
仅我的汽车还有我的自行车坏了。
解析：此句强调自行车坏了。
The present government focuses on health care, infrastructure and development, and immigration.
本届政府的重点是医疗保健、基础设施和发展以及移民。
以上例句and 若改为as well as就显得不合理，因为这些领域都一样重要，没有必要强调。
二、as well as 谓语的数是跟其前面的主语一致，而and 谓语用复数，例如：
Rand and Sten are coming.
兰德和斯滕来了。
Rand as well as Sten is coming.
不仅斯滕还有兰德来了。