到底做了什么，就是让它跑一个简单的例子，我想要确信我找到了正确的元素-，这里我用一个简单的小的列表-，如果我去代码里面看。

I think the easiest way to look at what this does, is let's take a really simple example - I want to make sure I put the right things out - I've got a simple little list of values there.

youdao

或，如果你不能避免在雪中跑，你可能想要想买踪迹流动的鞋子，有一些防水而且将会在雪中给你一个小较多的曳。

Or, if you can't avoid running in the snow, you may want to think about buying trail running shoes, which are somewhat water-proof and will give you a little more traction in the snow.

youdao