1、He advanced with precaution, taking care not to knock against the furniture.
他朝前走，謹慎小心，唯恐撞了家具。

2、To hit or knock against something.
碰，撞打擊或撞擊某物

3、Ronaldo: 'Ronaldo picked up a knock against Sampdoria and has not been able to train well.
羅納爾多：羅納爾多在對桑普多利亞的比賽中經(jīng)歷了一次嚴重的碰撞，訓(xùn)練也沒有好好進行。