基本解釋n. 中柱；[機(jī)] 中樞銷；大螺栓同根派生 kingbolt相關(guān)詞英英字典柯林斯英英字典 the pivot bolt that connects the body of a horse-drawn carriage to the front axle and provides the steering joint a similar bolt placed between a railway carriage and the bogies kingbolt劍橋字典kingbolt柯林斯字典