基本解釋n.指關節(jié)骨；膝節(jié)骨同根派生 knucklebone相關詞英漢例句His arm looks like a broken compass;it's not an arm any more, but a knucklebone with a shank attached. 他的胳膊活像一衹破損的指南針，早已不再是一條胳膊，卻成了加上一條脛骨的指關節(jié)了。knucklebone更多例句