解释：must not的缩写;不得
mustn't 是什么意思及中文翻译：
动词(v.) must not的缩写
动词(v.) 不得
mustn't 相关例句
We mustn't take combustible goods aboard.
我们不可带易燃品上车。
You absolutely mustn't do anything stupid.
你千万别做傻事。
We mustn't belittle her outstanding achievement.
我们一定不能小瞧了她所取得的杰出成就。
We mustn't absent ourselves from a meeting on some pretext.
我们不可借故不去参加会议。
You need't go on a diet, but you must eat sensily and mustn't overeat.
你不必节食, 但必须饮食有度, 不能吃得过饱。
To acquire good handwriting, one mustn't begrudge time spent on practice.
练字必须舍得下工夫。
We mustn't tell her. Her weak body can't bear the blow of her son's death.
我们不要告诉她了，她羸弱的身体再也不能承受失去儿子的打击了。
We mustn't allow such a person access to confidential matters of the state.
不能让这样的人与闻国家机密。
She mustn't push him too hard, for he certainly hadn't been so easy to nab!
她不能太逼紧了，找这么个大东西不是件很容易的事。
I whispered to Catherine that she mustn't, on any account, accede to the proposal.
我低声对凯瑟琳说无论如何她决不能同意这个提议。