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Q:云是由悬浮在空中的小水滴和小冰晶组成的,可是为什么会呈现出不同的颜色,有的洁白如絮,有的乌黑一块,有的则散发着红色的光彩呢?
Q: The cloud is composed of small droplets suspended in the air and small ice crystals, but why do they show different colors, some are white and some are black, while others are red?