Look, there are several children run up on the roof, and they seemed exultant, in celebrating the snow from the above can clearly see their footprints on a thick snow.

瞧，屋顶上有几个小孩跑了上来，他们仿佛在欢庆着雪中的欢跃，从上面可以很清楚的看到他们踩在厚厚大雪上的足印。