理工院士教授的遊記堪稱一堂豐盛的曆史專業課。思忖又有多少授課曆史的會去找可能可觀的一手資料？

來源: 一許艾西於 2021-12-28 14:48:28 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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