这支新队在比赛中成了一匹黑马,大家都没想到。Zhè zhī xīn duì zài bǐsài zhōng chéng le yì pǐ hēimǎ, dàjiā dōu méi xiǎngdào.This new team became a dark horse in the competition, which nobody expected.
他本来不起眼,却在考试中成了黑马。Tā běnlái bù qǐyǎn, què zài kǎoshì zhōng chéng le hēimǎ.He was unremarkable at first but became the dark horse in the exam.
这个年轻选手是今年最大的黑马,拿到了冠军。Zhè ge niánqīng xuǎnshǒu shì jīnnián zuì dà de hēimǎ, nádào le guànjūn.This young player is this year's biggest dark horse and won the championship.