Mǎnhuái xìnxīn de chūzhàn, què shāyǔ'érguī, tā xīnlǐ hěn bùshì zīwèi.
He went in full of confidence and came back thoroughly defeated — it left him feeling bitter.
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From Bao Zhao's petition in the Liu-Song dynasty (南朝宋·鲍照《拜侍郎上疏》): 'with feathers clipped and scales exposed (铩羽暴鳞), yet I may soar and leap again.' 铩 means to damage a bird's wing feathers — a classical image of frustrated ambition.
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Literary and formal. Common in sports reporting, business journalism, and commentary on campaigns or bids — less so in everyday speech.