形容词
中文翻译：退化的
同义词：
['declining', 'deteriorating', 'decadent例句：1. The population of the city has been declining for several years.（这个城市的人口已经下降了好几年。）']
例句：
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1. The population of the city has been declining for several years.
这个城市的人口已经下降了好几年。
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2.The economy is deteriorating due to the lack of investment.
由于缺乏投资，经济正在恶化。
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3. The old building is a reminder of the decadent lifestyles of the past.
这座旧建筑是过去堕落生活方式的提醒。