dark horse此语源出于在赛马中将马易色使人不能识别其实力的做法。赛马中出冷门获胜的马称为 dark horse 此语现用来指在比赛中或竞选中实力不为人所知但出乎人们意料之外获胜的马或人,如:Jim is a dark horse inthe final.杰姆是决赛中爆出的冷门。Jack is the dark horse in this elec- The reason dark horse used this language is because of horse coloring in horse racing that people can’t recognize their power. The horse that wins the horse in the race is called dark horse. The term is used to refer to a horse or a person who is unknown in the game or campaign but who unexpectedly wins. For example: Jim is a dark horse in the final Jem is an upset in the finals. Jack is the dark horse in this elec-