To seek benefit but incur harm; to attempt to gain an advantage only to suffer a loss.
他一心想通过投资快速致富，结果却因为盲目跟风，求益反损，损失了一大笔钱。
He was eager to get rich quickly through investment, but as a result of blindly following trends, he sought benefit but incurred harm, losing a large sum of money.
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