雪化成水。

Snow melts into water.

《新英汉大辞典》

雪和冰反射了大概超过90%左的太阳能量，然而，附着在冰层上方的烟尘，会加热下方冰层，将他们融化成水。

Snow and ice normally reflects much of the sun's energy — up to 90 percent — back the way it came. But a layer of soot on top of the ice will absorb the sunlight, warm the ice beneath, and melt it.

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可是雪孩子不见了，他已经化成水了。

But snow-boy has disappeared, he has melted into water.

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