Fields and streams disappeared under the uniform whiteness.

但乘客们却没有发现这些河流，因为田野和河水都已变成了清一色的雪白平原。

Some weeks before a white powder had fallen like snow upon the roofs and the lawns, the fields and streams.

几星期前，一些白色的粉末像雪花般落到了屋顶、草坪、田野和溪流中。