太阳系的行星探索
本文档由 争寒 分享于2009-05-26 01:46
柯氏太阳系 The Heart of the Solar System Sun (太阳) The Sun is the closest star to Earth and is the center of our solar system. A giant, spinning ball of very hot gas, the Sun is fueled by nu..
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君，已阅读到文档的结尾了呢~~