want to know

I want to know whether the restaurant has a table for four before we walk over.

走过去之前，我想知道那家餐厅有没有四人桌。

That's why we do this extensive testing because we want to know the characteristic of the model, how to design a system on top of the model.

这就是为什么我们要做这种广泛的测试，因为我们想知道模型的特性，以及如何在模型之上设计系统。