mustn't
uk/ˈmʌs.ənt/ us/ˈmʌs.ənt/
（must not的缩略形式）
short form of must not
You mustn't worry too much about this. 你不必对此太担心。
- More examples
- You mustn't go into the garden.
- Tell them they mustn't make too much noise.
- You mustn't leave litter lying around.
- I mustn't forget my keys.
- She mustn't feel she has to pay.