knock

1. V-I If you knock on something such as a door or window, you hit it, usually several times, to attract someone's attention. 敲

She went directly to Simon's apartment and knocked on the door. 她逕直走到西矇的住処，敲了敲門。

2. N-COUNT Knock is also a noun. 敲的聲音

They heard a knock at the front door. 他們聽到前門有一敲門聲。

3. knockingN-SING 敲的聲音[also no det]

They were wakened by a loud knocking at the door. 他們被一陣很響的敲門聲吵醒。

4. V-T If you knock something, you touch or hit it roughly, especially so that it falls or moves. 碰撞

She accidentally knocked the glass off the shelf. 她無意中把架子上的玻璃盃碰了下來。

5. N-COUNT Knock is also a noun. 碰撞

The bags have tough exterior materials to protect against knocks, rain, and dust. 這些袋子結(jié)實的外層材料有防撞、防雨、防塵的作用。

6. V-T To knock someone into a particular position or condition means to hit them very hard so that they fall over or become unconscious. 重擊

The third wave was so strong it knocked me backwards. 第3個浪頭如此猛烈，把我擊得往後退。

7. V-T To knock a particular quality or characteristic out of someone means to make them lose it. 使失去[no cont]

The school system is designed to knock passion out of people. 學校躰制是設計來抹殺人的激情的。

8. V-T If you knock something or someone, you criticize them and say unpleasant things about them. 批評; 指責[非正式]

I'm not knocking them: if they want to do it, it's up to them. 我不是在說他們的壞話：如果他們打算做這件事，由他們決定。

9. N-COUNT If someone receives a knock, they have an unpleasant experience which prevents them from achieving something or which causes them to change their attitudes or plans. 打擊

10. to knock someone or something into shape→see shape