1 a host of 大量
2 a test for 检测目的
3 a test on 对……进行测试
4 a test with 检测手段
5 above all 最重要的
6 according to 根据
7 achieve equilibrium 取得平衡
8 achieve one's purpose 达到目的
9 achieve success 获得成功
10 achieve victory 获得胜利
11 act on 遵照┄行动,作用于
12 act on 对…有影响
13 add up to 总计,合计
14 add…to... 把…加到….
15 adhere to 坚持,奉行
16 after all 毕竟
17 agree on 对…取得一致意见
18 agree to 同意
19 agree with sb. 同意某人的话
20 along with 和...一道,和...一起
21 alternate (with) 交替
22 amount to 合计,共计
23 an equal to 与…(地位)相同的人/物
24 and yet 然而
25 anything but 一点也不
26 anything like 像……那样的东西
27 anywhere near 接近于
28 apart form 除……之外尚有
29 apply to 向……申请,适用于
30 appreciation of 对……的欣赏
31 argue against 反对
32 as a result of 作为……的结果,由于
33 as a result (作为结果,因此)表结果
34 as a whole 作为一个整体,整个看来
35 as far as …/are concerned 就……而言
36 as for 至于,就…方面说
37 as if 好像,仿佛
38 as soon as一...就...
39 as though 好像,仿佛
40 as to 至于,关于
41 as well 也,一样
42 as yet 迄今,到目前为止
43 aside from 除┄之外
44 associate… with… 由…联想到…,把…和...联系起来
45 association with 与……的交往
46 at a disadvantage 处于不利地位
47 at a loss 不知所措
48 at a time 每次,一次
49 at all 丝毫,根本
50 at any moment 即使,随时
。