动词
中文翻译：摩擦
同义词：
['rub', 'rub against', 'rub together']
例句：
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1. The old clock was so worn out that it needed to be rubbed back and forth on a piece of cloth.
这个旧时钟磨损得太厉害了，需要用一块布来回摩擦。
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2. The car engine is rubbing, which means it needs oil.
汽车发动机在摩擦，这意味着它需要加油。
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3. Rub the paint off with a rag or cloth to remove any remaining dust or dirt.
用抹布或布擦拭油漆以去除任何剩余的灰尘或污垢。