毁于一旦

shí nián xīn xuè huǐ yú yī dàn

十年心血毁于一旦！

The fruits of ten years' labours destroyed in one day!

léi ēn gǔ chéng de dà bù fen zài nián de dà huǒ zhōng huǐ yú yī dàn

雷恩古城的大部分在1720年的大火中毁于一旦。

Much of historic Rennes was destroyed by fire in 1720.

tā céng kàn dào tā bì shēng de láo dòng chéng guǒ jiù zài yǎn qián huǐ yú yī dàn

他曾看到他毕生的劳动成果就在眼前毁于一旦。

He had seen his life's work destroyed before his very eyes.