This research has done much to advance our understanding of language learning.

　　這項(xiàng)研究大大提高了我們對(duì)語(yǔ)言學(xué)習(xí)的認(rèn)識(shí)。

　　He has done sterling work on the finance committee.

　　他在財(cái)務(wù)委員會(huì)工作優(yōu)異。

　　This man has done nothing wrong.

　　這位男子沒(méi)有做過(guò)不正當(dāng)?shù)氖隆?/p>

　　Any reasonable person would have done exactly as you did.

　　任何有頭腦的人都會(huì)完全照你那樣去做的。

　　He said I must have done something bad to deserve it.

　　他說(shuō)我肯定是罪有應(yīng)得。

　　You shouldn't have done it without consulting me.

　　你不該不和我商量就做了這件事。