a wedge or block placed against a wheel or rounded object, to prevent it from moving (轮子或圆形物下防滚动的)楔子;垫木 ■a support on which a rounded structure, such as a cask or the hull of a boat, may be placed to keep it steady (桶等圆形结构的)支架,支座;(船身的)定盘,艇座
a ring with a gap at the top, through which a rope or line is run 导缆钩,导缆器
verb
[with obj.](常作 be chocked)prevent the forward movement of (a wheel or vehicle) with a chock 用楔子挡住(轮子,车辆)(防止滚动) ■(Brit.)support (a boat, cask, etc.) on chocks (英)将(船、桶等)置于支架上
语源
Middle English: probably from an Old Northern French variant of Old French çouche, çoche 'block, log', of unknown ultimate origin