- petroleum before it has been refined
| 单词 | crude oil |
| 释义 | WordReference Random House Learner's Dictionary of American English © 2024 ˈcrude ˈoil, n. [uncountable] WordReference Random House Unabridged Dictionary of American English © 2024
crude′ oil′,
Collins Concise English Dictionary © HarperCollins Publishers:: crude oil n
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