Aa big headache 令人头痛的事情a fraction of 一部分a matter of concern 焦点，令人关注的问题a series of 一系列，一连串above all 首先，尤其absent from 不在，缺席abundant in 富含account for 解释accuse sb
of sth
指控某人add to/add up to 增加after all 毕竟，终究agree with 同意ahead of time/schedule 提前ahead of 在
之前alien to 陌生的，不熟悉的all at once 突然，同时all but 几乎，差不多all of a sudden 突然all over again 再一次，重新all over 到处，遍及all the same 尽管如此；仍然all the time 一直，始终angry with sb
at/about sth
生气，愤怒anxious about/for 忧虑，担心anything but 决不；远非apart from 除了appeal to 吸引；对
有吸引力applicable to 适用于apply to 适用于appropriate for/to 适合approximate to 接近于apt at 擅长apt to 易于；有……倾向around the clock 夜以继日as a matter of fact 事实上as a result(of) 因此，由于as a rule 通常，一般来说as far as
be concerned 就
而言as far as 远至，到
程度as follows 如下as for 至于as good as 几乎相同，和
一样好as if 好像，
