Knuckleduster
n. [常作～s]=brass knuckles
📖 牛津释义
knuckleduster
n (US brass knuckles) metal cover worn over the knuckles to increase the injury caused by a blow with the fist 戴在指关节上的金属套（打人时加重损伤）.
🗣️ 情景例句
Thank you.
谢谢。
Beauty is truth, truth beauty.
美就是真，真就是美。
The six students put their closed hands in front of them.
6个学生将握紧的手放在前面。