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)