因为这些小雨滴并不会在平流层结云降雨，因此会在那里停留数月甚至数年。
Because it doesn't rain in the stratosphere, the droplets can linger for months or years.
youdao
光云里一个人影逐渐结聚成形。
In the light cloud a figure knot gathers gradually a form.
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