everyone和each one的分別?

Everyone : we use this word to describe all the people you are talking about. That is, they have the same identity, goal or status.
Example : Everyone is happy that Mary is healthy again. (Here everyone has the same feeling - happy. No one is different.)
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Each one : Each one is to describe one of a group (more than 1 person) of people. They may not have same identity, goal or staus.
Example : Each one in our school played an important role in making the school open day a success. (Here each one can refer to the principal, the teachers, the students or the parents. Each one of them is the unit of the group (which organize the open day) but they are different in identity or status.)

To 002, living in usa doesn't mean you are good in english.

I saw many native english speakers writing poor english. please don't emphasis where you are.

Btw, you've made some mistakes.

decribe pppl - describe ppl
homeworks - actually homework is uncountable

2008-10-18 02:15:37 補充：
Actually, I hate ppl grouping together to get marks from answering questions and voting for their friends without fair judgement.

everyone is more general; each one is more specific. e.g.

Everyone has to stay after school today. (~ the whole class)

You guys have no homework again! Ok, each one of you have to stay after school today. (~ those who have no homework only)

hi, they are almost the same, but have little bit difference.
when u are using {everyone and each one} to decribe pppl, their meaning is the same. e.g. everyone is studying. e.g. each one is studying.
however, {each one} can also decribe to something (e.g. food/matter ..etc). e.g. there are many foods in kitchen, each one is delicious. e.g. I have to complete my homeworks but each one is not easy.
hope it can help.