13．take…… into account (=consider) 把……考虑进去

14．give sb. an account of 说明，解释（理由）

15．account for (=give an explanation or reason for) 解释，说明

16．on account of (=because of) 由于，因为

17．on no account (=in no case, for no reason) 绝不要，无论如何不要（放句首时句子要倒装）

18．accuse……of…… (=charge……with; blame sb. for sth.; blame sth. on sb.; complain about) 指控，控告

19．be accustomed to (=be in the habit of, be used to) 习惯于

20．be acquainted with (=to have knowledge of)了解； (=to have met socially) 熟悉

21．act on 奉行，按照……行动；act as 扮演；act for代理

22．adapt oneself to (=adjust oneself to) 使自己适应于

23．adapt……(for) (=make sth. Suitable for a new need) 改编，改写（以适应新的需要）

24．in addition (=besides) 此外，又，加之

25．in addition to (=as well as, besides, other than) 除……外