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I am a sprite（精灵）in winter. I like to fall on（掉落在...上） trees and roofs（屋顶）.

The children like to play with me. Now, winter is coming（来临）.We are playing on the playground. And we are very happy. We are making a snowman. Look, the snowman can "dance". And I can see some children are playing football. Oh, spring is coming. I will thaw（融化）in spring. Do you who am I?