allow的用法：
用作动词(v.)
用作及物动词：
S+～+n./pron.
Why do you allow yourself?你为什么放纵自己呢?
I don't think he would allow it.
我想他不会允许的.。
I long to visit you, but my health won't allow it.
我很想去看看你,但我的身体已经不允许了。
We allowed no discount.
我们不打折扣。
S+～+v-ing
Our teacher does not allow cheating to go unpunished.
我们的老师不允许作弊行为不受到惩罚。
Do they allow smoking in the cinemas?他们允许在电影院里抽烟吗?
The policeman wouldn't allow parking in this street.
警察不允许在这条街上停车。
S+～+that-clause
We must allow that he is a very clever politician.
我们必须承认他是一个很精明的政客。
I allowed that I was a bit hasty.
我承认我这样做轻率了一点。
He allowed that it had been a mistake.
他承认那是一场误会。
I must allow that he is a promising young man.
我必须承认他是个很有前途的青年。
Itis/was～ed+that-clause
It is allowed that pronunciation is one of the principal things in English.
大家都认为发音是英语的一个重要方面。