1 a host of 大量
2 a test for檢測目的
3 a test on對……進行測試
4 a test with檢測手段
5 above all 最重要的;
6 according to根據(jù)
7 achieve equilibrium取得平衡
8 achieve one’s purpose達到目的
9 achieve success 獲得成功
10 achieve victory獲得勝利
11 act on 遵照┄行動，作用于;
12 act on對…有影響
13 add up to 總計，合計
14 add… to 把…加到….
15 adhere to 堅持，奉行
16 after all 畢竟，均不合題意;
17 agree on對……取得一致意見
18 agree to同意
19 agree with sb.同意某人的話
20 along with 和┄一道,和┄一起;
21 alternate (with)交替;
22 amount to 合計,共計;
23 an equal to與……相當?shù)娜?物，(地位)相同的人
24 and yet然而
25 anything but 一點也不;
26 anything like像……那樣的東西
27 anywhere near接近于
28 apart form除……之外尚有
29 apply to 向……申請，適用于
30 appreciation of對……的欣賞/贊賞
31 argue against 反對
32 as a result of作為……的結(jié)果，由于
33 as a result(作為結(jié)果，因此)表結(jié)果，用不用逗號隔開看情況而定;
34 as a whole 作為一個整體，整個看來
35 as far as …/are concerned就……而言
36 as for至于，就…方面說
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，關(guān)于;
41 as well也，一樣
42 as yet迄今，到目前為止
43 aside from 除┄之外;
44 associate … with…由……聯(lián)想到……，把……聯(lián)系起來
45 association with與……的交往
46 at a disadvantage處于不利地位
47 at a loss不知所措
48 at a time每次，一次
49 at all 絲毫,根本;
50 at any moment即使，隨時。
