knock

🇬🇧/nɒk/ 🇺🇸/nɑːk/📚 6617 509 3中考高考
If you knock on something such as a door or window, you hit it, usually several times, to attract someone's attention.

verb [vt. 及物动词]敲,击;碰撞,碰倒;把…撞击成;敲动,打破;打,凿(洞);(尤指因故障)发碰撞声,嘭嘭作响;挑剔,无端指责

She went directly to Simon's apartment and knocked on the door.
她径直走到西蒙的住处,敲了敲门。

noun [具体名词]敲打声,(尤指)敲门声;打击,捶击,撞击

They heard a knock at the front door.
他们听到前门有一敲门声。

knock 出现在下面的课文中(提供视频、音频及笔记等可系统性学习)
Lesson 115&116 Knock, knock! knock 动词: 敲,打
Lesson 24 It could be worse
Lesson 13 'It’s only me'
Lesson 37 The process of ageing
knock

vi. 敲;敲击;打

单词造句:
网友用“Knock”造句精选
They were wakened by a loud knocking at the door. 他们被一阵很响的敲门声吵醒。
She accidentally knocked the glass off the shelf. 她无意中把架子上的玻璃杯碰了下来。
The bags have tough exterior materials to protect against knocks, rain, and dust. 这些袋子结实的外层材料有防撞、防雨、防尘的作用。
The third wave was so strong it knocked me backwards. 第3个浪头如此猛烈,把我击得往后退。
The school system is designed to knock passion out of people. 学校体制是设计来抹杀人的激情的。
I'm not knocking them: if they want to do it, it's up to them. 我不是在说他们的坏话:如果他们打算做这件事,由他们决定。
You don't have to knock—just walk in. 不必敲门—进来就是了。