来自丁兴的问题
【Lookatthesign!ItsaysNoSmoking.You____smokehere填shouldn't还是mustn't】
Lookatthesign!ItsaysNoSmoking.You____smokehere填shouldn't还是mustn't
1回答
2020-06-30 12:57
【Lookatthesign!ItsaysNoSmoking.You____smokehere填shouldn't还是mustn't】
Lookatthesign!ItsaysNoSmoking.You____smokehere填shouldn't还是mustn't
mustn't表示禁止,语气很强烈
shouldn't更多用于虚拟语气句等中,也是will的否定,意思为不应该