knock

/nɒk/ v. / n.
标准词条 CET-4CET-6IELTS
一句话记住

敲；击；碰撞；敲击声；撞击

释义与例句

v. 敲；击；碰撞
to strike a surface to make a noise, or to hit someone or something
  1. Someone is knocking at the door.
    有人在敲门。
  2. She knocked the vase off the shelf.
    她把花瓶从架子上碰掉了。
展开其余 1 条例句
  1. He knocked his head on the low beam.
    他的头撞到了低矮的横梁上。
n. 敲击声；撞击
the sound of someone hitting a door or other hard surface, or an act of hitting something
  1. There was a loud knock at the door.
    门口传来很响的敲门声。
  2. I heard three knocks on the window.
    我听到有人敲了三下窗户。
展开其余 1 条例句
  1. The fall gave him a nasty knock on the head.
    那一跤使他的头部受到严重撞击。

词源与构词

记忆钩子 knock 中的 k 不发音；knock at/on the door 是“敲门”，knock over 是“碰倒”。

词族与关联词

同义词
  • tap 轻敲；轻拍
    tap 指轻而短促地敲或拍；knock 通常指较响地敲门等，也可泛指碰撞。
    She tapped the screen twice. 她轻敲了两下屏幕。
易混词（形近或义近，注意区别）
  • hit 打；撞击
    hit 泛指击打或撞击；knock 常指敲门发出声响，也可指碰倒、撞到或敲击声。
    He hit the ball with a bat. 他用球棒击球。
常见搭配
  • knock on the door 敲门
    Please knock on the door before entering. 进门前请先敲门。
  • knock someone down 撞倒某人
    A cyclist nearly knocked me down this morning. 今天早上一个骑自行车的人差点把我撞倒。
  • knock something over 碰倒某物
    The cat knocked over a glass of water. 猫碰倒了一杯水。