燃料是可以烧起来、产生能量的东西，比如汽油、煤和天然气。

燃料 is something that can be burned to produce energy, such as gasoline, coal, and natural gas.

汽车、飞机和很多机器都需要燃料才能工作。

Cars, airplanes, and many machines need 燃料 to work.