To fail in an important examination or endeavor; to suffer setbacks and be in a difficult or desperate situation, often after failing to achieve a desired goal.
他为了赢得这场比赛付出了很多努力，最终却暴腮龙门，感到非常沮丧。
He put a lot of effort into winning this competition, but ultimately failed to achieve his goal and felt very disheartened.
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