So I said something that some of you have heard, which is all of us could get better gas mileage and save oil in the process just by keeping our tires inflated.

• 所以我说了你们其中有些人已经听过的说法，就是我们所有人都能通过为汽车轮胎打足气而获得更好的燃油效率和节省汽油。