This works only when they are located at the same longitude
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送交者: HunHunSheng 于 2005-1-12, 16:52:23:
回答: 你理解错了。他知道这个影子在不同城市间的差别 由 xj 于 2005-1-12, 16:47:46:
Otherwise when it is noon at one city, it is not noon
at the other.
所有跟贴:
加跟贴
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