| 单词 | petroleum |
| 释义 | petroleum (once / 617 pages) n Petroleum is oil — a fossil fuel that powers many vehicles and other machinery. Petroleum is a fancy, technical word for something you've probably heard of: oil, an energy source. Petroleum is also known as crude, crude oil, fossil oil, and rock oil. A lot of petroleum is found in the Middle East, and people are always looking for new sources of petroleum. You have to drill for petroleum, because it's deep inside the Earth. There’s a limited amount of petroleum, so many people worry that we're going to use it all up. WORD FAMILYpetroleum: petroleums USAGE EXAMPLESBut OPEC, the Organization of Petroleum Exporting Countries, recently agreed to cut production beginning in January to restore some stability to the market. Seattle Times(Dec 27, 2016) The Oklahoma Energy Resources Board provides free tuition for petroleum industry classes there. Washington Times(Dec 26, 2016) Since the Nov. 30 meeting of the Organization of the Petroleum Exporting Countries crude prices are up nearly 17%. Wall Street Journal(Dec 23, 2016) n a dark oil consisting mainly of hydrocarbons Syn|Hypo|Hyper crude, crude oil, fossil oil, oil, rock oil resid, residual oil oil products that remain after petroleum has been distilled fossil fuel fuel consisting of the remains of organisms preserved in rocks in the earth's crust with high carbon and hydrogen content oila slippery or viscous liquid or liquefiable substance not miscible with water |
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