1.刀
及物动词：
1.切割，刺 词形变化
- 名称 knifer
- 时态 knifed，knifing，knifes
- 复数 knives
- any long thin projection that is transient
- use a knife on
- edge tool used as a cutting instrument; has a pointed blade with a sharp edge and a handle
- a weapon with a handle and blade with a sharp point