n.刀；匕首；刃部；手术刀vt.切割，刺；伤害；vi.劈开；划过； 变形： 复数：knives过去式：knifed过去分词：knifed现在分词：knifing第三人称单数：knives 双语释义：n.(名词)[C][U]刀 sharp blade with a handle, used for cutting or as a weapon or cutting blade in a machine or toolv.(动词)vt. 切割,刺 cut or stab with a knife英英释义： k