名词
中文翻译：石油润滑油
同义词：
['lubricating oil', 'petroleum jelly']
例句：
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1.The engine needs lubricating oil to keep it running smoothly.
发动机需要润滑油来保持顺畅运行。
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2. The car was filled with petroleum grease before the engine started.
汽车在发动机启动前充满了润滑油。
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3.The mechanic used petroleum grease to lubricate the gears.
机械师用石油润滑油润滑齿轮。