沒有道德禁忌的原始族群因為疾病的打擊無法繁衍壯大，逐漸被淘汰。剩下的都有一些相同或不同的禁忌。

來源: 羽衣甘藍於 2016-06-26 07:17:42 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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