need not have done

高中英语常考词组短语大全... ... near to 接(靠)近；几乎要 need not have done 原本不必 needless to say 不用说，更何况 ...

英语情态动词_百度知道 ... dare not have done 做了不敢做的 need not have done 做了不需要做的 must have done 一定 ...

一道高一英语... ... might have done 对某人未做某事表示不满----本可以 need not have done 本来不必 would have done 就已经 ...