speedwayWiktionary 原文/ˈspiːdweɪ/n.汽车(或摩托车)竞赛场，高速公路中文释义来自 ECDICT构词拆解speedspeed词干wayway词干词源说明From speed + way.释义名词noun1uncountableA form of motorcycle racing on flat (without camber) oval dirt tracks using motorcycles with neither brakes nor gears.2uncountableA form of bicycle racing on flat (nonbanked) oval dirt tracks