不可以

Never judge a person by his appearance.

人不可以貌相.

An absolute constant is fixed and can not be changed.

绝对常数是固定而不可以改变的.

It is not to be sneezed at.

这是不可以轻视的.

There is no comparison between them.

两者不可以同日而语.

You cannot equate his poems with his plays.

你不可以把他的诗歌和他的剧本相提并论.

I'm like your elder sister. You shouldn't hold anything back from me. "

我好比你的姐姐, 你有什么话不可以对我说? ”

"I'llgo myself." — "Like hell you will!"

“我会自己去。”——“绝对不可以！”

You have to learn not to cut your toenails in the living room.

你要知道不可以在起居室里剪脚趾甲。

We must not try to play off the boy troubled with a stammer.

我们不可以取笑这个有口吃病的男孩.

" Will I be able to teach you when you're well, Sophia?

他赶忙便说: “ 莎菲,我不可以等你病好些就教你 吗 ?

Some say yes; some say no.

有人说可以, 有人说不可以.

No one may leave his post without permission.

未经允许,任何人不可以离开岗位.

Nothing could be done without her say-so.

未经她准许，什么都不可以做。

" Why doesn't he take on fewer responsibilities and concentrate on one job? "

“ 他不可以少管一点,专门去做某一种工作? ”

You must not do it.

你不可以做那件事.