To live in extreme poverty, having no food or money reserves; to lead a hand-to-mouth existence.
他勤劳了一辈子，却因为种种变故，到老了依然家无斗储，日子过得十分艰难。
He worked hard all his life, yet due to various misfortunes, he still lived in extreme poverty in his old age, with life being very difficult.
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