名词
中文翻译：维持
同义词：
['support', 'upkeep', 'repair']
例句：
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1. The car needs regular maintenanceto keep it running smoothly.
这辆车需要定期维护，以保持其顺畅运行。
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2.The house needs painting and cleaning to maintainits appearance.
这所房子需要粉刷和打扫，以保持其外观。
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3. Theroof needs repairing after the storm toprevent further damage.
暴风雨过后，屋顶需要修理，以防止进一步损坏。