双刃刀的英文

double-edged sworddouble-edged sword[edit] Etymology from the notion that even as one edge of a two-edged sword can be directed at an enemy or otherwise do your bidding, the opposite edge, pointing back as it does towards you, is at risk of doing you harm

双刃剑 [shuāng rèn jiàn] rapier 以上来源于: 《新汉英大辞典》rapier ['reipi�0�5] n. 1. (窄长的)双刃剑 2. (决斗或剑术中用的)轻剑

blade 是刀sward是剑

sword是剑，来源于古英语，最终来源于日尔曼语。泛指剑。而剑有很多，比如高地人盖尔人用的双手大砍剑claymore，古罗马的短剑gladius，用于骑兵冲锋的马刀sabre（saber）等等。

blade是“刃”，指单刃剑，如马刀，或双刃剑，如claymore中的一个刃。后来也用blade带指剑，刀。这里blade与中文“刀”较之于“剑”更加接近。

近义词

knife

英［naɪf]美［naɪf]

n.刀。

v.用刀伤害（或杀害）。

［例句］Score the card first with a knife.

先用刀在卡片上划出痕迹。