动词
中文翻译：恶化
同义词：
['decay', 'degenerate', 'deteriorate']
例句：
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1. The old painting has startedto deteriorate over time.
这幅旧画随着时间的推移开始变坏了。
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2. Thehealth of the environment isdeteriorating due to pollution.
由于污染，环境的健康正在恶化。
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3.The quality of the food has deteriorated since the factory closed.
自从工厂关闭后，食物的质量已经恶化了。