knives的用法和样例：
例句
用作名词 (n.)
- The soldiers sharpened up their knives.
战士们把刀磨得锋利。 - They ground the knife on a grindstone.
他们在磨刀石上磨刀子。 - You must be very careful with this sharp knife.
你用这把锋利的刀子必须很小心。
词汇搭配
- knife 刀
- long-bladed amputation knives 长刃切断刀
- set of knives 动刀片组
- double knives 双刀
- no time to swap knives [口]没有工夫改变计...
- night of the long knives 长刀之夜,血的清洗...
