Where the rubber meets the road is another interesting phrase.

“where the rubber meets the road”是另一个有趣的短语。

Where the rubber meets the road is the point of contact between automobile tires and the road.

轮胎接触地面的地方就是汽车轮胎和地面的接触点（point of contact）。

But a newly unveiled tire concept from Goodyear aims to generate extra energy from where the rubber meets the road.

但新公布的固特异轮胎的概念旨在从橡胶接触地面时产生额外的能量。

And when it comes to retrofitting our streets and highways-those agencies are where you might say the rubber meets the road.

谈到改造我们的道路和高速公路，你可能会说这些机构是“橡胶与道路接触之处”（关键之处）。

So far, it has all been theories. Where the rubber meets the road will be in a class full of students.

到目前为止，你都还是理论上的研究。你会在一个坐满学生的课堂上检验这些理论。