我比較較笨，美國有很多義工，和楊振寧的思想有什麽關係？楊振寧自己能解釋清楚，他原來和消防員有精神聯係？

來源: 窮則思變於 2025-10-21 07:18:41 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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