📚 WordMate 词典

n. 指节, 蹄爪, 膝关节
v. 以指节打, 以手指射

n. a joint of a finger when the fist is closed
v. press or rub with the knuckles
v. shoot a marble while keeping one's knuckles on the ground

复数: knuckles 过去式: knuckled 现在分词: knuckling 第三人称单数: knuckles 过去分词: knuckled f: knuckles