acquire多指经过努力逐步获得才能、知识、习惯等，也可用于对财物等的获得，强调“一经获得就会长期持有”的含义；attain是指经过不懈的努力获得未曾预料到的结果，也可指达到某一目标。

attain和acquire的用法

acquire+名词

acquire a new lease of life 获得新生

acquire an education 受教育

acquire an understanding 取得谅解

acquire a target 捕捉到目标

acquire a taste for sth 开始喜欢某事物

acquire a title of 得到…的头衔

acquire bad habits 养成坏习惯

acquire experience 获得经验

attain+名词

attain better economic results 取得较好的经济效益

attain long-term prosperity 实现长期的繁荣

attain one's aim 达到目的

attain the opposite shore 到达对岸