fuel economy

例句：

1. 1. The car's fueleconomy is excellent, making it a popularchoice for long-distance travel.
   这辆车的燃油经济性非常好，是长途旅行的理想选择。
2. 2. To improvefuel economy, the manufacturerhas introduced new engine designs.
   为了提高燃油经济性，制造商已经引入了新的发动机设计。
3. 3. The company aims to reduceits carbon footprint by increasing fuel economy.
   该公司致力于通过提高燃油经济性来减少其碳足迹。