我也相信是制度不同。现代社会交通发达人类几乎实现了自由迁徙的梦想等于是race的作用减小了很多

来源: donau 于 2022-11-14 23:28:17 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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