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.