One that raps or strikes, especially a door knocker.
敲击者敲击或打击的人，尤指敲门者
He knocked on the wall and she knocked back.
他敲了敲墙壁，她在隔壁应声回敲。
Listen ! Someone is tapping on the window.
听!有人在敲窗户。
He Beat on the door till his hands hurt.
他敲打着门，直到把手都敲疼了。
Knock. Opens locked or psionically locked doors.
敲击术：敲开锁或以灵能锁住的门。
He saw a small house, and knocked on the door.
他看到一间小屋子，便敲了敲门，
Knock at the window pane.They may be in.
敲敲玻璃窗，他们也许在家。
and cracked his head soundly with her thimble.
还用顶针狠狠地敲他头，敲得砰砰响。
whacks'em over the head with her thimble --
她不过是用顶针在头上敲敲罢了??
Try knocking at the back door if nobody hears you at the front door.
(如果敲前门没人应门,试着敲后门。
Does this clock strike the quarters?
这只钟每过一刻钟时敲不敲？
The act or an instance of extorting.
勒索，敲诈敲诈或勒索的行为或事例
The Butler ventured to tap at his door.
管家壮着胆子敲了敲他的房门。
The judge rapped for order.
法官敲敲木棰叫人们遵守纪律。
A knocking or tapping sound.
敲击声敲击或叩击发出的声音
A person who collects money, as for racketeers.
敲诈勒索者为敲诈而收钱的人
A quick, light blow or knock.
轻敲，轻叩快速、轻轻的打击或敲打
To strike(a bell) to produce music.
敲击敲击（一只钟）从而奏出音乐