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And what do scientists study?
科学家研究什么呢?
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Let's discover how scientists study space and uncover its secrets!
让我们发现科学家如何学习宇宙,揭开它的秘密!
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Scientists study Lake Baikal to better understand evolutionary science.
科学家研究贝加尔湖,以更好地了解进化科学。
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Scientists study Lake Baikal to better understand evolutionary science.
科学家研究贝加尔湖,以更好地了解进化科学。
youdao