名词
中文翻译：磨损的部分
同义词：
['wear and tear', 'old parts', 'damaged parts']
例句：
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1. The car's worn parts were causing the engine to overheat.
汽车的磨损部件导致发动机过热。
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2. The old house needed many worn parts to be replaced.
这所老房子需要许多磨损部件来更换。
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3. Repairing the worn parts of the machine will save time and effort.
修复机器的磨损部分将节省时间和努力。