지하의 암석층에 존재하는 탄화수소의 액체 혼합물로, 추출하여 휘발유, 경유 등의 연료와 여러 제품을 생산하는 데 사용된다.
A thick, flammable, yellow-to-black liquid mixture of hydrocarbons occurring naturally beneath the Earth's surface, which is extracted and refined to produce fuels (such as gasoline and kerosene) and other products.
예문:
"The global economy remains heavily reliant on petroleum for transportation and manufacturing."
"After extraction, crude petroleum must be sent to a refinery for processing into usable products like gasoline and diesel."
"Environmental groups advocate for transitioning away from fossil fuels like petroleum to renewable energy sources."