根据我的记忆，水往复地变化，从湖泊和海洋里的水变成水蒸气，然后当它以雨或雪——也就是降水的形式落下时又变成水。
From what I remember, water changes back and forth from water in lakes and oceans to vapor, and then back to water again when it falls as rain or snow, as precipitation.
当一个美丽的小女孩的皮肤像雪一样白的时候，雪花从天空落下。
The snowflakes were falling from the sky when a beautiful baby girl with skin as white as snow was born.
当融化的雪晶或雨滴落下时穿过非常冷的空气，它们会冰冻成很小的冰粒子，称作冰雨。
When melting snow crystals or raindrops fall through very cold air, they freeze to form small particles of ice, called sleet.
当融化的雪晶或雨滴落下时穿过非常冷的空气，它们会冰冻成很小的冰粒子，称作冰雨。
When melting snow crystals or raindrops fall through very cold air, they freeze to form small particles of ice, called sleet.
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