估計大同小異。那時不但蛋白質和脂肪食物缺乏，自然災害等諸多原因，生產力低下，人口猛增，經濟不平衡。

來源: 古樹羽音於 2025-02-13 19:52:52 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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