1. Today´s snowfall superimposed a fresh two inches yesterday´s accumulation.
    今天的雪又新添加两寸在昨天的积雪上。

2. Only an exceptionally heavy snowfall might temporarily dislocate railway services.
    只有非同寻常的大雪才可能暂时打乱铁路运行。

3. Outside, the leafless trees were white with the first snowfall.
    窗外，一场初雪给光秃秃的树裹上了素装。