形容词
中文翻译：退化的
同义词：
['declining', 'declining', 'deteriorating例句：1. The population of the city has been declining for the past decade.（过去十年来，这个城市的人口一直在下降。）']
例句：
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1. The population of the city has been declining for the past decade.
过去十年来，这个城市的人口一直在下降。
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2.The economy of the country is deteriorating due to poor management.
由于管理不善，该国的经济正在恶化。
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3. The health of the elderly population is deteriorating as a result of lack of care.
由于缺乏护理，老年人群的健康状况正在恶化。