謝謝葦葦！你修物理的，我愛讀科普的，覺得家父解釋黑洞時，很能掌握著我的兒童心理來說物理。

來源: shuier 於 2023-05-22 13:42:50 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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