1) a big time：尽兴，快乐的时辰
e.g. I had a big time there.
the big time：第一流，最高级
e.g. Don’t worry, you are in the big time now.
2) according to：依照，依据
e.g. They were commended or criticized according to their work.
e.g. The thermometer rises or falls according as the air is hot or cold.
3) admit to：招认
e.g. I have to admit to a dislike for modern music.
admit sb.(in) to：允许某人进入某地或参与某组织、行业
e.g. They have admitted me into their club.
4) all for：完全赞成
e.g. I am all for holding a meeting to discuss it.
e.g. They could not open the box for all their forces.
5) all in all：总的说来
e.g. All in all, it is a success.
e.g. He was all in, but he stuck it out.
6) as it is (was)：照目前的状况来看
e.g. As it is, we shall be able to complete our task in time.
as it were：能够说，权且这样说
e.g. He is, as it were, a walking dictionary.
7) as much as：简直，实践上
e.g. By running away he as much as admitted that he had taken the money.
e.g. It is as much our responsibility as yours.
8) 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：不只……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.
9) 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.
10) attach to：属于，归因于
e.g. No blame attaches to him.
attach oneself to：参与，参与
e.g. He attached himself to the group of climbers.
11) be a credit to：为……增光
e.g. I hope you will be a credit to your school.
do credit to：为……增进荣誉
e.g. This piece of work does credit to you.
12) bear in mind：记住
e.g. I hope you will bear in mind all I am saying.
have in mind：思索
e.g. Don’t give your confidence to others regarding the plan you have in mind.