speedwayn(a) [C] track for fast driving and racing, esp by motor-bikes 赛车跑道（尤指摩托车的）.(b) [U] sport of racing motor-bikes on such a track 摩托车赛 Do you like speedway? 你喜欢摩托车赛吗?(c) [C] (US) road on which fast driving is allowed 高速公路.
牛津英汉双解词典