1，a change of pace 节我来给分享下市面上比较有名dsqinye.com的在线少儿英语一对一排名奏变换 You cant 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，愿意过来帮忙。 If you need my help, do let me know. Just remember I am a深圳地区可以去那里学习英语培训yiyi18.com，小李子啊，你抄什么啊？ 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: 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..很熟悉 She is at home with problems like this.