如果房子上有雪，我们用英语可以说"There is snow on the roof of the house"。这个短语的来源是指房子的屋顶上积着雪。下面是一些相关的英文例句及其中文翻译：

I can see that there is snow on the roof of your house. 我能看到你家的屋顶上有雪。
The snow on the roof of the house is starting to melt. 屋顶上的雪开始融化了。
We need to shovel the snow off the roof of the house before it gets too heavy. 我们需要把屋顶上的雪铲下来，在雪变得太重之前。
The snow on the roof of the house is making the house look very cozy. 屋顶上的雪让房子看起来非常舒适。