king.bolt

kingbolt的音标和读音：
DJ音标发音： [ˈkiŋˌboult]
KK音标发音： [ˈkɪŋˌbolt]

kingbolt的词性：
n.（名词）

1. A vertical bolt that joins the body of a wagon or other vehicle to its front axle and usually acts as a pivot.Also called kingpin
中心销：连接马车或其它车辆的车身和它的前轴的垂直栓销，一般起枢轴作用也作 kingpin