1，a change of pace 步伐变换
You can do these chemistry experiments all day long. You certainly need a change of pace.
2, a far cry from 相距甚远 The published book is far cry from the early manuscript.
3, and how 的确 A: Shes a good dancer. B: and how.
4, a matter of time 时间问题 It is only a matter of time.
5, a phone call away 一个电话之远，想过来帮忙。
If you need my help, do let me know. Just remember I am a phone call away.
6, a while back 不久以前
7，all along 一直 I knew it all along.
8, anything but 绝对不 I was anything but happy about going.
9, account for 讲解 How do you account for it?
10, after all 到底
A: Ive just seen the X-rays and your teeth look just fine,
B: I see. Then there is nothing to worry about after all.
11, allergic to 对|过敏
Oh man! Something in this room is making my eyes itch. I must be allergic to something.
12, at sbs service 愿为某人服务 I am at your service at any time.
13, around the clock 24小时不停 Martha studied around the clock for management exam.
14, as far as I know 就我所知
15，at home with 对..很了解 She is at home with problems like this.
16, back out
1) 退出A: Wasnt Bert supposed to sing tonight? B: Yes, but he backed out at last minute
2)不履行 She finally backed out of her promise.
17, be cut out for 天生合适 Im not cut out to be a hero.
18, be absorbed in She has been absorbed in a horror fiction. I cant tear her away.
19, be addicted to 对上瘾 She has been addicted to drugs for years.
20，be attached to 对有感情
A: Im amazed that you are still driving that old car of yours. I thought you would have
gotten rid of it years ago. B: It runs well and Ive actually been quite attached to it.