mileage per gallon

例句：

1. 1. The car has a high mileage per gallon rating.
   这辆车的油耗效率很高。
2. 2.The new hybrid engine offers better mileage per gallon than its gasoline counterpart.
   这款新混合动力引擎的油耗效率比其汽油版本更高。
3. 3.The company is committed to reducing its carbon footprint by increasing the mileage per gallon of their vehicles.
   该公司致力于通过提高车辆的油耗效率来减少其碳足迹。