龙龙爱龙眼
knock，tap，rap，pat 这些动词均有“敲、击”之意。knock：指用拳头或其它器械猛敲或猛打；也指用手轻敲某物。tap：多指慢慢地连续地轻击或轻拍。rap：指用手指或木棒等快速地轻敲或急拍。pat：指用手轻拍以示同情、赞同或爱抚。
尚家宜商贸
knock at the door.To see the manager, knock at the door marked"private". 要见经理，请敲标有“私人的”字样的房间。When I heard the knock at the door, was the frightened out of my senses. 一听见有敲门声我就吓得六神无主。
蚂蚁在fei
knock英:[nɒk] 中文谐音:诺克 vi.猛烈敲击; 与某物相撞; 撞到了桌子; n.短促的敲打（声）; 爆震声; 敲击声; 敲门（或窗等）声; 例句:I heard a knock, what's matter?我听到发动机有爆震声，怎么回事？复数:knocks
