Europe is the greyest continent, with 23 of the world's 25 oldest countries.
欧洲是老龄化最严重的大陆,世界上25个老龄化最严重的国家中有23个就在欧洲。
adj. 灰色的;灰白的;(grey的最高级)
Europe is the greyest continent, with 23 of the world's 25 oldest countries.
欧洲是老龄化最严重的大陆,世界上25个老龄化最严重的国家中有23个就在欧洲。