racehorse

n horse bred or kept to run in races 赛马用的马.

rabbit punch, rabbit-hutch, rabbit-warren, rabbity, rabble, rabble-rouser, rabble-rousing, Rabelaisian, rabid, rabies, RAC, raccoon (esp US) (Brit also racoon), race, race relations, race-meeting, race-riot, race-track, racecard, racecourse, racegoer, raceme, racer, racial, racialism, racialist, racially, racily, raciness, racing, racism, racist, rack, rack-railway (also esp US cog-railway), rack-rent, racket, racket (also racquet), racket-press, racketeer, racketeering, rackety,