基本解釋n.曲柄同根派生 crank-arm相關詞英漢例句用作名詞 (n.)My car's so old that I have to crank it.我的車太舊了,我只好轉動曲柄來發(fā)動它。The pedal of a cycle is attached to a crank.自行車的踏板與曲柄相連。crank-arm更多例句