1，a change of pace 节奏变换
     You can’t 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: She’s 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，愿意过来帮忙。
    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 解释
    How do you account for it?

10, after all 到底
     A: I’ve 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 sb’s 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…..很熟悉
     She is at home with problems like this.

16, back out
    1) 退出
     A: Wasn’t 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 天生适合
    I’m not cut out to be a hero.

18, be absorbed in
     She has been absorbed in a horror fiction. I can’t 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: I’m 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 I’ve actually been quite attached to it.  

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