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单词 must not(do not have to)
释义 must not : do not have to--678
must not 是 must 的否定形式,作“不许”或“不要”讲,表达禁止(参见词条 P.679 ); do not have to 是 have to 的否定形式,作“不一定”讲,含有“大可不必”的意境色彩。
比较:
YOu mustn't tell George. 你不能告诉乔治。(= Don't tell George. )
You don't have to tell George. 你不一定要告诉乔治。
( =You can if you like but it isn't necessary. )
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更新时间:2025/2/2 13:40:35