each与every都有“每个”的意思，但二者含义及语法功能不同，主要区别是：
1. each既可用作形容词，又可用作代词，在句中可以作定语，主语、宾语、同位语、状语等。
Each student has his own dictionary. （形容词，定语）
Each has hi s good point. （代词，主语）
Our head teacher had a talk with each of us. （代词，宾语）
The students each have a desk. （代词，同位语）
The children can have a bag each. （副词，状语）
2. each与every都可用作形容词，在句中作定语，但each更强调个人或个别，every更强调全体或全部。
比较：
I know each number of your family.
I know every number of your family.
3. each指两个或两个以上的人或事物中的“每个”；every是指许多人或事物的“全体”，与all的意思相近。
试译：
这条街上每边都有很多商店。
［误］There are many shops on every side of the street.
［正］There a re many shops on each side of the street.
我给她父母每人 一件礼物。
［误］I gave a present to every one of her parents.
［正］I gave a present to each of her parents.
4. 指上下文提到过的确定数目中的“每一个”时，要用each；如果上下文没有提及时，不能用each，要用everyone等。
试译：
我认为这三个答案个个都正确。
［误］I think every answer of the three is right.
［正］I think each of the three answers is right.
我看见人人都忙着工作。
［误］I saw each was busy with his work.
［正］I saw everyone was busy with his work.
