英语单词用法区别：mustn't和can't都能表示“不可能”的意思，用法上有什么区别？sight,scene,view的区别

语气强调：You mustn't enter that door, it is forbidden. (命令式)
一般语气：You can't smoke, it is not good for your health.（劝慰式）
表示能力的否定：I can't play piano, I haven't learn it before.

He lost his sight. 他失明了
It's a good scene by the lake, I'm very satisfied. 湖边景色很美。
It's my point of view that you are wrong. 我认为你错了。

这几个句子是对这几个词的常用说法。参考一下吧。

can't常用一些，mustn't多表示禁止
scene表示视觉，view可以表示观点

must’t是主观较强的，can’t强调客观条件