knuckly ['nʌkl]

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附加级

n.（指人）指关节；（指动物）膝关节，肘；铰结，肘形接；铜指节套vt.用指关节打、压、碰、擦

Wainwright rubbed a knuckle along the surface of his chin. 温赖特的一个手指关节在下巴上搓来搓去。来自辞典例句
They refused to knuckle under to any pressure. 他们拒不屈从任何压力。来自辞典例句