11.above all   近义词:especially    尤其是, 最重要的

12.be absent from 缺席

13.absence of mind   近义词:being absent-minded    心不在焉
14.absent oneself from sth 不在
15.absolve sb from   赦免某人…
16.be absorbed in 近义词:be engrossed in;be lost in;be rapt in;be concentrated on

be focused on;be centered on  全神贯注于…

17.abstain from   避开(免)…

18.be abundant in    近义词:be rich in;be well supplied with  富于,富有
19.abundant in 富于
20.accept sth  同意某事