age (of a society)
These problems include the high sex ratio and the growing population aging.
例如出生人口性别比偏高、人口老龄化等。
—— 给力词典精选China´s population is aging at unprecedented levels.
使中国人口老龄化达到了前所未有的水平。
—— 给力词典精选Shanxi province is also confronted with enormous challenges from aging of population.
同样,山西省也面临着人口老龄化的巨大挑战。
—— 给力词典精选The fourth part : the strategy choice in active aging in Shandong.
4、山东省实行积极老龄化的战略选择。
—— 给力词典精选Population aging is one of the world´s population development tendency.
人口老龄化是世界人口发展的一种趋势。
—— 给力词典精选