1. a bit (of) 有一点儿
2. a couple of 两个;几个
3.a group of 一群
4. a kind of 一种; 一类
5. a lot of (lots of)=a number of 许多
6. a pair of 一双; 一副
7. a piece of 一(块,张,片,件)
8. according to 按照;根据
9. after all 终究, 毕竟
10. after school 放学后
11. agree with sb/to do.同意某人的意见/某事
12. all day (long) 整天
13. all over 到处
14. all right 行了;好吧;(病)好了
15. all the same 还是, 仍然
16. all the time 一直
17. all the way 一路上
18. and so on 等等
19. apologize to sb. for sth. 为某事向某人道歉
20. arrive at / in a place 到达某地
21. as well 也;又
22. ask for 请求;寻求
23.at breakfast /lunch /supper 早/午/晚餐时
24. at first / last 起先;开始的时候/ 最后;终于
25. at home 在家(里)
26. at least / most 至少/ 至多
27. at once 立刻;马上
28. at present 现在，目前
29. at school 在学校;在上课
30. at the moment 此刻;目前;那时;当时
31. at the same time 同时
32. at work 在工作
33. at/on weekends 在周末
34. be able to 能够(有能力)
35. be afraid of 害怕
36. be angry with sb. 生某人的气
37. be bad for 有害于
38. be born 出生于
39. be busy with / doing sth. 忙于做某事
40. be careful with 小心
41. be covered with 被覆盖
42. be different from 与不同
43. be familiar to 对熟悉
44. be famous for 以而著名
45. be fond of 爱好
46. be full of 充满
47. be good / poor at 善长于/ 对比较差
48. be interested in 对感兴趣
49. be keen on 喜爱
50. be late for 迟到