发表于: 2020-7-13 14:19:38

National Geographic 国家地理百科关于太阳系Solar System的全部视频下载

The universe is filled with billions of star systems. Located inside galaxies, these cosmic arrangements are made up of at least one star and all the objects that travel around it, including planets, dwarf planets, moons, asteroids, comets, and meteoroids. The star system we’re most familiar with, of course, is our own。
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National Geographic 国家地理百科关于太阳系Solar System的全部视频下载

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链接: https://pan.baidu.com/s/15CVsmToBkJ0XhO87bi9d2A

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