名词
中文翻译：Unknown
同义词：
['decay', 'deterioration', 'wear and tear', 'aging process']
例句：
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1. The elderly need more care than the young.
老年人需要比年轻人更多的照顾。
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2. The aging population is a growing concern for society.
老龄化的人口是社会日益关注的问题。
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3. As we age, our bodies undergo changes that affect our health.
随着年龄的增长，我们的身体会发生变化，影响我们的健康。