flat racingˈflat ˌracing noun [uncountable] British English horse racing on flat ground without any fences在平地上进行的无障碍赛马carreras de caballos en terreno llano sin vallascorrida de cavalos em terreno plano sem obstáculos障害物のない平坦なコースで行う競馬장애물 없는 평지에서 하는 경마 → steeplechase