“我有一匹黑马一匹棕马，”农场主说道，“你要哪匹？”

"I have a black horse and a brown horse," the farmer said, "which one would you like?"

youdao

他骑在一匹高大的黑马上。

He was riding on a large black horse.

《牛津词典》

如果说欧洲战斗机公司有可能成为一匹黑马的话，那么开发中的PAK FA几乎没有任何机会。

If the Eurofighter is a dark horse, the developmental PAK FA has little realistic chance of winning the competition.

youdao

It began to infiltrate other disciplines and was in general a high-spirited horse for that certain period of time.

它逐渐渗入到其它学科,总之是那个时代的一匹黑马。

耶鲁公开课 - 文学理论导论课程节选