名词
中文翻译：Unknown
同义词：
['rust', 'corrosion']
例句：
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1. The iron nail has started to rust on the wall.
这个铁钉开始在墙上生锈了。
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2. The old car's body is showing signs of corrosion.
这辆旧车的车体开始出现腐蚀的迹象了。
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3. To prevent rusting, it's important to regularly clean and oil the metal parts.
为了防止生锈，定期清洁和润滑金属部件是很重要的。