hmmm... let me think. @_@ 球體戀 = 萬有引力?
所有跟帖:
• 為什麽? -不明則問- ♂ (0 bytes) () 04/21/2009 postreply 13:55:34
• 牛頓利用萬有引力定律說明了行星運動規律 -雲是天上的花- ♀ (103 bytes) () 04/21/2009 postreply 14:29:45
• 為什麽? -不明則問- ♂ (0 bytes) () 04/21/2009 postreply 13:55:34
• 牛頓利用萬有引力定律說明了行星運動規律 -雲是天上的花- ♀ (103 bytes) () 04/21/2009 postreply 14:29:45
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