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晴朗的夜空,当你抬头仰望满天星斗时,有时会看到一种移动的星,它像天幕上的神行太保匆匆奔忙。它们是什么星,又在忙些什么呢?
In the clear night sky, when you look up and stare at the starry sky, you will sometimes see a moving star that rushes like the Heavenly CPIC on the sky. What are they and what are they doing?