v. 动词敲，碰；打通；把…撞击成（某个状态）；打破；（心）怦怦跳，（膝盖）打哆嗦；发碰撞声；批评；打球
n. 名词敲击声；撞击
He accidentally knocked over the glass on the table.
他不小心碰倒了桌子上的玻璃杯。
She knocked on the door but there was no answer.
她敲门但没有回应。
The wind knocked down the weak fence.
风吹倒了不牢固的栅栏。
The child knocked the toy off the shelf.
孩子把玩具碰掉在了架子下。
He knocked into his colleague in the hallway.
他在走廊里撞到了他的同事。
The ball knocked against the wall and stopped.
球撞击到墙上然后停了下来。
She knocked over the plant while cleaning.
她在打扫时碰倒了植物。
The book knocked off the desk by the cat.
书被猫从桌子上碰掉。
He knocked on the window to get her attention.
他敲窗户以引起她的注意。
The car knocked into the tree during the storm.
在暴风雨中汽车撞到了树上。
knock down
撞倒, 击倒；(拍卖时)敲槌卖出
knock out
击倒；击昏；淘汰
knock at
敲, 锤, 打
knock over
打翻；碰倒；撞倒
knock into
磕入…；撞上…；闯入…
复数: knocks;
第三人称单数: knocks;
过去式: knocked;
过去分词: knocked;
现在分词: knocking;
