as有哪几种用法?怎么用?
问题描述：
as有哪几种用法?怎么用?
我已知一个：as形容as名词.是跟……一样…….其它的呢?
quickly！
答
as 因为.
as 尽管 Young as he is ,he knows a lot
as 当 时候 he sang as he walked
as正如.You should do as you are told to.