名词
中文翻译：润滑剂
同义词：
['lubricant', 'grease']
例句：
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1. The engine needs a lubricant 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's engine is running smoothly with thenew lubricant.
使用新的润滑油，汽车的发动机运行得非常顺畅。
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3.Lubricants are essential for preventingfriction and wear in machinery.
润滑油对于防止机械摩擦和磨损至关重要。