adj.燃料消耗低的;省油的;
例句:
Automobile companies would be pushed to change their product lines to more advanced, fuel-efficient vehicles.
汽车厂商必须改进产品线,生产更先进 、 更节能的汽车.
The airline transitioned to more fuel-efficient jets.
这家航空公司转而采用燃油效率更高的客机.
Now, they wants smaller and more fuel-efficient cars.
现在他们想要的是更小型的更有燃油效率的车.