화석 연료
hwaseok yeonryo
Noun
Definitions
fossil fuel
A substance used as fuel today, formed by organisms from ages ago being buried and fossilized under the ground.
아주 옛날에 살았던 생물이 땅속에 묻혀 화석같이 굳어져 오늘날 연료로 이용하는 물질.
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