1, as regards , 关于,至于
2, as a rule , 通常,照例
3, as a result , 因此,由于
4, as far as , 远至,到...程度
5, as for , 至于,关于
6, as follows , 如下
7, as if , 好像,仿怫
8, as good as , 和...几乎一样
9, as usual , 像平常一样,照例
10, as to , 至于,关于
11, as well as , 除...外,即...又
12, aside from , 除...外
13, all but , 几乎;除了...都
14, all over , 遍及
15, all the time , 一直,始终
16, at a time , 一次,每次
17, at all , 丝毫,一点也不
18, at all costs , 不惜一切代价
19, at all events , 不管怎样,无论如何
20, at all times , 随时,总是
21, at any rate , 无论如何,至少
22, at best , 充其量,至多
23, at first , 最初,起先
24, at first sight , 乍一看,初看起来
25, at hand , 在手边,在附近
26, at home , 在家,在国内
27, at intervals , 不时,每隔...
28, at least , 至少
29, at last , 终于
30, at length , 最终,终于
31, at most , 至多,不超过
32, at no time , 从不,决不
33, at present , 目前,现在
34, at the cost of , 以...为代价
35, all means , 尽一切办法,务必
36, account for, 说明
37, allow for, 考虑到
38, arrive at, 达成，得出
39, ask for, 请求，要求
40, aim at, 瞄准，针对