二體問題。兩個球相互轉來轉去，到底誰繞著誰轉？難道就因為太陽個大，就必須以太陽為主？

來源: 郭大平於 2024-11-05 21:32:10 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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