美國過去的所謂中產階級一直在萎縮，有些由於通脹等原因降到了低收入階層，有些升到了“上中層”

來源: 提問題於 2026-03-22 05:53:29 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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