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n. 指节, 蹄爪, 膝关节
vt. 以指节打, 以手指射
vi. 以指节打, 以手指射
【化】 过渡圆角
【医】 指节, 膨出部

pig's knuckle knuckle-dusters knuckle wheel knuckle support bare-knuckle knuckle man knuckle centre steering knuckle knuckle bearing transition knuckle knuckle throw pig's knuckle knuckle drive knuckle bushing knuckle bearing coupler knuckle knuckle thread knuckle-dusters flat knuckle knuckle throw knuckle bender pads knuckle