Fill in eight-character idioms. What is a small setback, Gu?

An old pioneer lost his horse-a blessing in disguise.

Pinyin: sàI wēng shēm? ē m, yān zhēI fúI fú abbreviation: swsmyzff.

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Explanation: [explanation] Although the metaphor suffers for a while, it may actually benefit from it. It also means that bad things can be turned into good things under certain conditions. With "a blessing in disguise is a blessing in disguise".

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Example: [Example]

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