名词
中文翻译：Unknown
同义词：
['age distribution', 'age composition', 'age profile']
例句：
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1. The age structure of the population is changing rapidly.
人口的年龄结构正在迅速变化。
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2. The company's age structure is crucial to its success.
公司的年龄结构对其成功至关重要。
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3. The age structure of the population affects economic growth.
人口的年龄结构影响经济增长。