The U. S. meanwhile sits on largely untapped fossil fuel resources, including coal, natural gas and oil.
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。
S. Haldane, a pioneering British geneticist, replied: "Fossil rabbits in the Precambrian era."
霍尔丹，英国遗传学的先驱，他回答道：在前寒武纪的兔子化石就是了。
The most significant decline in recent years has been coal: U. S. coal consumption fell 13% in 2015, the highest annual percentage decrease of any fossil fuel in the past 50 years.
下滑幅度最大的能源为煤炭，在2015年美国煤炭消费份额下降13%，是过去50年一年之内下滑幅度最大的化石燃料。
The experience of Cuba in the 1990's confirms the health effects of reducing fossil-fuel consumption.
古巴在上世纪90年代的经验证实了减少化石燃料的消费对人类健康的影响。
The experience of Cuba in the 1990's confirms the health effects of reducing fossil-fuel consumption.
古巴在上世纪90年代的经验证实了减少化石燃料的消费对人类健康的影响。
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