石教授雲遊四方，春節挾量子力學歸來。haha。過年好！新春愉快，吉祥如意，平安喜樂。^_^

來源: 盈盈一笑間於 2024-02-11 14:44:50 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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