1、刀的英文是knife。英[naɪf]、美[naɪf]。 2、刀；匕首；用刀切；伤害；劈开；划过。 3、短语：knife and fork 刀叉；under the knife 在外科手术中；kitchen knife 菜刀，厨刀；厨房刀；gamma knife n. 伽玛刀；knife edge 刀口；刃状物。 4、例句：He cut his name into the bark with his knife.他用小刀把自己的名字刻在树皮上。
knife 英[naɪf] 美[naɪf] n. 刀; 匕首; 刃部; 手术刀; vt. 切割，刺; 伤害; vi. 劈开; 划过; [例句]Two robbers broke into her home, held a knife to her throat and stole her savings.两个盗贼闯进了她的家，把刀架在她的脖子上，抢走了她的积蓄。[其他] 第三人称单数：knives 复数：knives 现在分词：knifing 过去式：knifed过去分词：knifed
