名词
中文翻译：变老
同义词：
['aging', 'declining']
例句：
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1.As we age, our health and energy levels tend to decline.
随着年龄的增长，我们的健康和精力水平往往会下降。
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2.The elderly often face financial challenges as they age.
随着年龄的增长，老年人往往面临财务挑战。
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3.The aging population is a growing concern for governments around the world.
人口老龄化是全球各国政府日益关注的问题。