1) as it is (was)：照目前的情况来看
e.g. As it is, we shall be able to complete our task in time.
as it were：可以说，姑且这样说
e.g. He is, as it were, a walking dictionary.
2) as much as：几乎，实际上
e.g. By running away he as much as admitted that he had taken the money.
as much…as：与……一样多
e.g. It is as much our responsibility as yours.
3) as well：也，还是……为好
e.g. He gave me advice, and money as well.
Since you have begun to do it, you may as well finish it.
as well as：不仅……而且，除……之外
e.g. With television, we see a picture as well as hearing sound.
Small towns as well as big cities are being rapidly industrialized.
4) at one time从前某个时期
e.g. At one time, we met frequently.
at a time：每次，一次
e.g. You can borrow only two books at a time.
5) attach to：属于，归因于
e.g. No blame attaches to him.
attach oneself to：参加，加入
e.g. He attached himself to the group of climbers.
