动词
中文翻译：润滑
同义词：
['lubricate', 'grease例句：1. The engine needs to be lubricated regularly to prevent wear and tear.（发动机需要定期润滑，以防止磨损。）']
例句：
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1. The engine needs to be lubricated regularly to prevent wear and tear.
发动机需要定期润滑，以防止磨损。
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2.The car's engine was lubricated with oil before it was driven.
汽车在行驶前被加了油进行润滑。
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3. The machine is lubricated with a special grease to ensure smooth operation.
这台机器被一种特殊的润滑油润滑，以确保顺畅运行。