allow的用法：

　　用作動詞(v.)

　　用作及物動詞：

　　S+～+n./pron.

　　Why do you allow yourself?你為什么放縱自己呢?

　　I don't think he would allow it.

　　我想他不會允許的.。

　　I long to visit you, but my health won't allow it.

　　我很想去看看你,但我的身體已經不允許了。

　　We allowed no discount.

　　我們不打折扣。

　　S+～+v-ing

　　Our teacher does not allow cheating to go unpunished.

　　我們的老師不允許作弊行為不受到懲罰。

　　Do they allow smoking in the cinemas?他們允許在電影院里抽煙嗎?

　　The policeman wouldn't allow parking in this street.

　　警察不允許在這條街上停車。

　　S+～+that-clause

　　We must allow that he is a very clever politician.

　　我們必須承認他是一個很精明的政客。

　　I allowed that I was a bit hasty.

　　我承認我這樣做輕率了一點。

　　He allowed that it had been a mistake.

　　他承認那是一場誤會。

　　I must allow that he is a promising young man.

　　我必須承認他是個很有前途的青年。

　　Itis/was～ed+that-clause

　　It is allowed that pronunciation is one of the principal things in English.

　　大家都認為發音是英語的一個重要方面。