单词：convections
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单词：convections 相关文章
The hour hand on a clock moves about ten thousand times faster than the flowing rocks of the mantle. 钟面上时针的移动速度，比地幔岩石的流动速度，要快大约1万倍。 The movements occur not just laterally as the Earth's plates
发表于:2019-02-25 / 阅读(227) / 评论(0)
万物简史
万物简史