Oil and other fossil fuels would have to fill the gap, he said.
他说，石油和其他化石燃料将填补这个需求空缺。
It can be extracted without burning a fossil fuel such as coal, gas, or oil.
它在采掘过程中无须燃烧如煤炭，煤气或石油这类矿石燃料。
At the moment, most of our energy comes from fossil fuels (natural gas and oil).
目前，我们大部分的能源来自于化石燃料(石油和天然气)。
In the long term, fossil fuels such as coal and oil will eventually be exhausted.
从长远看，煤炭、石油等化石能源终将枯竭。
Whether in coal, oil or gas, carbon is the essential ingredient of all fossil fuels.
无论是煤炭、石油还是天然气，碳是所有化石燃料的重要组成部分。
Whether in coal, oil or gas, carbon is the essential ingredient of all fossil fuels.
无论是煤炭、石油还是天然气，碳是所有化石燃料的重要组成部分。
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