must的否定是否等于don't have to
人气:249 ℃ 时间:2019-10-29 16:20:30
解答
mustn't是“不能做某事”
don't have to是“不须做某事”=don't need to=needn't
不一样
mustn't自己的否定形式mustn't不表示不必这个概念,而是道德或法规上的不允许
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