地球繞太陽旋轉，太陽在銀河係中飛奔，銀河係也朝著某個方向狂掠。地球軌道是圓，是橢圓，是螺旋，還是別的，取決於參照係，

來源: 郭大平於 2024-06-23 15:09:24 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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