1.    abide by(=be faithful to ; obey)忠于；遵守。
2.    be absent from…. 缺席，不在
3.    absence or mind(=being absent-minded)  心不在焉
4.    absorb(=take up the attention of)吸引…的注意力(被动语态):be absorbed in 全神贯注于…近:be engrossed in ; be lost in ; be rapt in ;be concentrated on ; be focused on ; be centered on
5.    (be) abundant in(be rich in; be well supplied with) 富于,富有
6.    access(to) (不可数名词) 能接近,进入,了解
7.    by accident(=by chance, accidentally)偶然地,意外. Without accident(=safely) 安全地,
8.    of one’s own accord(=without being asked; willingly; freely)自愿地 ,主动地
9.    in accord with 与…一致           .                   out of one’s accord with 同….不一致
10.   with one accord (=with everybody agreeing)一致地
11.   in accordance with (=in agreement with)  依照, 根据
12.   on one’s own account
1)    为了某人的缘故, 为了某人自己的利益
2)    (=at one’s own risk) 自行负责
3)    (=by oneself)依靠自己
on account 赊账; on account of 因为; on no account不论什么原因也不;of …account 有…..重要性.
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