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区别shouldn't have done 和 needn't have done

分类: 作业答案 • 2021-12-18 17:08:23

问题描述：

答

shouldn't have done意思是本不应该做某事,但是你做了（指你已经做了某件事,实际上你本不应该这么做的）
needn't have done 意思是本不需要做的事,但你做了

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ought to和should有什么区别?

区别shouldn't have done 和 needn't have done

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