knocks
/nɑːk/
名词
敲击声
There was a knock at/on the door.
有敲门声。
（重重的）一击，敲击
He received a nasty knock on the head from a falling slate.
一块石板掉下来把他的头重重地砸了一下。
/nɑːk/
动词
（反复地）敲，击，打
Please knock before entering.
进来前请先敲门。
指摘；挑剔
Don't knock him - he's doing his best.
别挑他的刺了——他已在竭尽全力了。
碰，撞；碰倒；撞倒
Who knocked over that mug of coffee?
谁打翻了那杯咖啡？