动词
中文翻译：润滑
同义词：
['lubricate', 'grease']
例句：
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1. The car needs some grease to keep it running smoothly.
这辆车需要一些油来让它运行顺畅。
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2. The chef greased the pan before cooking the steaks.
厨师在烹饪牛排之前给平底锅抹了油。
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3. The old engine needed a lot of grease to start up again.
旧发动机需要很多油才能再次启动。