Tāmen liǎng rén dōu shīyè le, zhēnshì tóngbìngxiānglián.
Both of them are unemployed - truly a case of misery loving company.
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history
This idiom originates from 吴越春秋, an Eastern Han dynasty text. It originally described people with the same illness comforting each other. The phrase captures the universal human tendency to bond over shared misfortune.