名词中文翻译
中文翻译：石油的原始形式
同义词：
['primitive petroleum', 'crude oil']
例句：
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1.The protopetroleum was discovered in the early 20th century.
原始石油在20世纪初被发现。
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2.Crude oil is the most common form of petroleum used for transportation.
原油是最常见的用于运输的石油形式。
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3. The protopetroleum was used as a fuel source for many years before it was refined into refined oil.
原始石油被用作燃料源很多年，然后才被提炼成精炼油。