你千万别忘了锁门。
You mustn't forget to lock the door.
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mustn't英 /ˈmʌsnt/|美 /ˈmʌsnt/
解释
mustn't + forget 表示强烈告诫，否定情态 mustn't 否决整个不定式结构 forget to lock the door
You mustn't forget to lock the door.
mustn't + forget 表示强烈告诫，否定情态 mustn't 否决整个不定式结构 forget to lock the door