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
You are always straying from the subject.
你说话总爱跑题。
Do you want to remit the money by air mail or by cable, sir?
您想要航空信还是电汇，先生？
He is the happiest man alive.
他是世界上最快乐的人。