17. on no account(=in no case，for no reason)絕不要，無論如何不要(放句首時句子要倒裝)
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)習慣于
20. be acquainted with(=to have knowledge of)了解;(=to have met socially)熟悉
21. act on奉行，按照…行動;act as扮演;act for代理
22. adapt oneself to(=adjust oneself to)使自己適應于
23. adapt…(for)(=make sth. Suitable for a new need)改編，改寫(以適應新的需要)
24. in addition(=besides)此外，又，加之
25. in addition to(=as well as，besides，other than)除…外
26. adhere to(=abide by，conform to，comply with，cling to，insist on，persist in，observe，opinion，belief)粘附;堅持，遵循
27. adjacent(=next to，close to)毗鄰的，臨近的
28. adjust……(to)(=change slightly)調(diào)節(jié);適應;
29. admit of(=be capable of，leave room for)…的可能，留有…的余地
30. in advance(before in time)預告，事先
