"Ageing population" 指的是人口老龄化，即一个国家或地区的人口结构中，老年人口的比重逐渐增加。这种现象通常是由于生育率下降和预期寿命延长引起的。
关于 ageing population 的英文范文，以下是一篇可能的示例：
Title: The Challenges of Ageing Population: Implications for Policy Making
As the world's population ages, the challenges posed by an ageing population have become increasingly prominent. With the decline in fertility rates and the prolongation of lifespans, the proportion of elderly people in our society is rapidly increasing. This trend has far-reaching implications for social security systems, healthcare resources, and economic growth.
Firstly, the ageing population poses a significant burden on social security systems. As the number of workers decreases and the number of retirees increases, the pool of resources available for retirement benefits is gradually shrinking. This puts pressure on governments to find ways to fund their social security systems, such as through tax increases or cutting public services.
Secondly, the ageing population has a significant impact on healthcare resources. With an aging population, healthcare costs are expected to rise significantly, putting pressure on healthcare systems to provide quality care for an increasing number of elderly people.
Finally, the ageing population has a profound impact on economic growth. As more and more people retire, the labor force available for productive activities decreases, which can have a negative impact on economic growth. Governments need to find ways to encourage active aging and promote the participation of older adults in society, such as through providing job opportunities or encouraging entrepreneurship.
In conclusion, the ageing population is a complex issue that requires comprehensive solutions from governments and society as a whole. By investing in healthcare systems, promoting active aging, and ensuring adequate social security systems, we can better prepare ourselves for the challenges posed by an ageing population.
“ageing population”直译为“老龄化人口”，在英文中经常被用来描述一个国家或地区中，随着人们寿命的延长，老年人口比例增加的现象。
在英文范文，特别是关于人口老龄化的文章中，ageing population可能指的是一个国家或地区中，随着时间推移而增加的老年人口数量，以及由此带来的社会、经济、医疗等方面的挑战和机遇。此外，它也可能涉及到如何应对老龄化人口的问题，如提供足够的养老服务、保持劳动力市场活力、以及规划未来的社会保障等。
“ageing population”的意思是人口老龄化。
在英文范文中的用法，例如：ageing population（老龄化人口），或ageing workforce（老龄化劳动力）。
人口老龄化是指人口生育率降低和人均寿命延长导致的总人口中因年轻人口数量减少、年长人口数量增加而导致的老年人口比例相应增长的动态。