absence from 缺席,不在

  absence of 缺乏

  access to ...的入口,通路

  acquaintance with 相识,了解

  action on sth 对...的作用

  addition to sth 增加

  admission to /into 进入,入(场,学,会)

  admission of sth 承认

  advance in 改进,进步

  advantage over 优于...的有利条件

  affection for/towards 爱,喜欢

  answer to ...的答案

  anxiety for sth 渴望

  apology to sb for sth 道歉

  appeal to sb for sth 恳求,呼吁

历年四级高频词汇汇总: http://insuns.com/article/17977-1.html