这是一个流传了很久的都市传说，但是正如在网络上搜索"PlanetX"的结果表明的那样，这个故事的大多数历史版本预测的时间是2003年5月。
This is anurban legend that's been around for a long time, but for most of thestory's history, this was supposed to happen in May of 2003, as anyInternet search for "Planet X" will reveal.
这是一个流传了很久的都市传说，但是正如在网络上搜索"PlanetX"的结果表明的那样，这个故事的大多数历史版本预测的时间是2003年5月。
This is anurban legend that's been around for a long time, but for most of thestory's history, this was supposed to happen in May of 2003, as anyInternet search for "Planet X" will reveal.
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