2026.02.20《沙漠里的沙子从哪来》

我们追踪了一粒沙的漫长旅程，看岩石如何被风化剥蚀、被流水搬运、被风力筛选，最终在干旱的地方堆积成无边无际的沙漠。前往小宇宙评论区与主播互动

Episode metadata supplied by the publisher feed · Published Feb 19, 2026

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2026.02.20《沙漠里的沙子从哪来》

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