a few (表示肯定)有些，几个

a good deal (接不可数名词)许多，大量

a little (表示肯定)一些，一点点

a lot of 大量的，许多

a number of 若干，许多

a series of 一系列，一连串

according to 根据

account for 说明(原因等)

after all 毕竟，终究

ahead of 在……前面，先于

all but 几乎，差一点;除了……都

all of a sudden 忽然

all over 到处，遍及;全部结束

all right 令人满意的;(健康)良好的;好，行，可以

all the same 仍然，照样地

all the time 一直，始终

allow for 考虑到，顾及

and so on 等等

anything but 根本不

apart from 除……之外(别无);除……之外(尚有)

as……as… 像，如同，与……一样

as a matter of fact 事实上，其实

as a rule 通常，照例

as far as 远到;就……而言，至于

as follows 如下

as for/to 至于，关于

as/if though 好像，仿佛

as long as 只要，如果;既然，由于

as soon as 一……就，刚……便

as usual 照例，像平常一样

as well 也，又

as well as 除……之外(也)，既……又

aside from 除……以外(尚有)

ask for 请求，要求

at a loss 困惑不解，茫然不知所措

at all (用于否定句)丝毫(不)，一点(不)

at all costs 不惜任何代价，无论如何

at all events 不管怎样，无论如何

at any rate 无论如何，至少

at best 充其量，至多

at ease 舒适(地)，安逸(地)

at first 最初，起先