brass knuckles
短语n. <美>指节铜环（套于指节上作武器用的指节铜套）
发音
其它
词形变化
only
复数
释义与例句
n.
-
1.
A weapon consisting of a metal reinforcement for the clenched fist, with finger holes molded in.
指节铜环
指节铜套
铁莲花
仅复数Jacob always carried a set of brass knuckles, just in case he ever got caught up in a bar fight.