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.