名词
中文翻译：指手
同义词：
['fist man', 'fist-fighter']
例句：
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1.He's a knuckle man; he'll never back down from a fight.
他是个拳头男，从不在战斗中退缩。
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2. The knuckle man is always ready to defend his territory.
那个拳头男总是准备好捍卫他的领地。
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3. The knuckle man was the first to admit that he made a mistake.
那个拳头男是第一个承认自己犯了错的人。