knife

刀、刀子

She sharpened the knife before slicing the roast beef.

她先把刀磨利，再切烤牛肉。

刀械、匕首

The man threatened the clerk with a knife and fled.

那名男子持刀威胁店员后逃逸。

刀片、刀刃机械

The knife on the machine must be replaced every month.

机器上的刀片每个月都必须更换。

持刀刺伤、捅

He was knifed in the arm during the street fight.

他在街头斗殴中手臂被人持刀刺伤。

划过、破开

The boat knifed through the calm water at dawn.

小船在黎明时分划开平静的水面前行。