When the fuel runs out, the fire dies down; metaphorically, it refers to the end of one's life, especially when one's vitality or resources are depleted.
他一生操劳，晚年疾病缠身，终究薪尽火灭，离开了人世。
He toiled his whole life, was plagued by illness in his later years, and eventually, like a fire whose fuel has run out, he passed away.
Era:
Ancient
Frequency:
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