n.(固定在门上供敲门用的)门环,吹毛求疵的人,一味批评的人,(冒犯语)乳房，奶子
knocker的复数

原形：knocker复数：knockers

He knocked on the door three times before someone answered.
他敲了三下门才有人应答。
The knocker on the old castle大门的锤子was made of solid gold.
那座古堡大门上的锤子是纯金打造的。
She gave a gentle knock on the classroom door to announce her arrival.
她轻轻地敲了敲教室的门，示意她进来了。
The knocker on the mailbox was bent, so it didn't make a clear sound when you knocked.
邮箱上的锤子变形了，敲击时声音不太清楚。
The little boy pretended to be a knight, using a toy sword to knock on the imaginary castle door.
小男孩假装成骑士，用玩具剑敲打想象中的城堡大门。
Knock knock! Who's there? Boo. Boo who? Don't cry, it's just a joke!"
咚咚咚！谁在那儿？布欧。布欧是谁？别哭，只是个玩笑！
The knocker on the antique shop door had intricate carvings of various animals.
古董店门口的锤子上刻有各种精致的动物图案。
I need you to knock out the wall between our apartments, but be careful not to damage the pipes.
我需要你把我们公寓之间的墙壁敲掉，但要小心别弄坏了水管。
The old man reminisced about the days when he used to knock wood for a living.
老人回忆起过去靠敲木头为生的日子。
After a long day at work, she leaned against the doorframe, letting the knocker gently hit the wood as she sighed.
工作一天后，她靠在门框上，让门锤轻轻敲击着木头，发出悠长的叹息声。