漲知識：）但這個古人的推理不明白：地是圓的，一直朝一個方向走，為什麽會掉到什麽地方去？

來源: JSL2023 於 2024-02-21 16:25:15 [舊帖] [給我悄悄話] 本文已被閱讀：次

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