柯林斯词典racehorse /ˈreɪsˌhɔːs/ (racehorses) 1. N-COUNT A racehorse is a horse that is trained to run in races. 赛马 返回 racehorse剑桥词典a horse bred and trained for racing (专门培育的)比赛用马,赛马 返回 racehorse