动词
中文翻译：腐蚀
同义词：
['rusting', 'tarnishing', 'discoloring']
例句：
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1.The old silverware has started to tarnishing over time.
旧银器开始因时间而生锈。
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2.The paint on the wall is starting to tarnishing with age.
墙上的油漆因年久开始褪色。
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3.The metal surface was tarnishing due to exposure to the elements.
由于暴露于元素，金属表面开始生锈。