1. The car has a high mileage, which means it has been driven for a long distance.
这辆车的行驶里程很高，意味着它已经行驶了很长的距离。
2. The fuel efficiency of this car is excellent, as it has a low mileage per gallon.
这辆车的燃油效率很好，因为每加仑的油耗很低。