說明此行為為具有社會屬性生物的生理行為，而非人類文明發明的，對人類的進化有著深遠意義。

來源: calm01 於 2025-11-19 09:37:32 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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