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Zhihu Dailycommunity
#27Rank reported by source
Original source Why Do Clouds Sometimes Have Clear Edges?
为什么有时候天空中的云朵会有比较清晰的边界？
A public trend signal observed across 1 source.
Provenance
1 sources为什么有时候天空中的云朵会有比较清晰的边界？
A public trend signal observed across 1 source.