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雪的颜色，你知道多少？
冬天到了，你是不是喜欢窗外飘着的雪花？你是不是觉得雪都是白色的？其实，你错了！雪的颜色，比你想象的要丰富多彩！今天，我们就来揭开雪的奥秘，让你看到一个不一样的冬天！
宇宙知识探秘253/345
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