而美国则拥有很大程度上尚未开发的化石燃料资源，包括煤，天然气和石油。
The U. S. meanwhile sits on largely untapped fossil fuel resources, including coal, natural gas and oil.
最常见的化学能包括煤、天然气、石油、和食物等各种各样的燃料。
Various fuels such as coal, gas, oil and food are common examples of chemical energy.
最常见的化学能包括煤、天然气、石油、和食物等各种各样的燃料。
Variouss fuels such as coal, gas, oil and food are common examples of chemical energy.
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