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What is the ancient Yis first cognition about the universe structure?
彝族先民对宇宙结构的最早认识，能是盖天说吗？
youdao
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The first step, overall cognition, structure knowledge network.
第一步，整体认知，构造知识网络。
youdao
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The first step, overall cognition, structure knowledge network.
第一步，整体认知，构造知识网络。
youdao