He is a dark horse.

（马）他是个深藏不露的人。

He performed excellently in the race, truly a dark horse.

他在比赛中表现出色，真是个黑马。

This company suddenly rose in the market, becoming a dark horse in the industry.

这家公司在市场上突然崛起，成为了行业的黑马。

So a dark horse may appear.

所以，也许会出现黑马也说不定。

The race was won by a dark horse.

这场比赛的获胜者是一匹名不见经传的马.

Jim is a dark horse in the final .

吉姆是决赛中的冷门。

This may be a dark horse of destiny.

这可能就是一匹黑马的宿命。

This team will be a dark horse in the coming World Cup.

这支球队很可能成为世界杯上的一匹黑马。

Lao Ensi then will be listed after the luxury car market, a dark horse?

那么劳恩斯上市后是否会成为豪华轿车市场上的一匹黑马?

I have confidence in him. I know he will be a dark horse in the contest.

我对他有信心。我知道他在这次的比赛中将是一匹黑马。