人口负增长下少子老龄化将成常态 【词语拼音】:__ ren kou fu zeng chang xia shao zi lao ling hua jiang cheng chang tai_
人口负增长下少子老龄化将成常态 【词语简写】:__rkfzcxszllhjcct_
人口负增长下少子老龄化将成常态 【英文拼写】:Under negative population growth, the aging of young children will become the norm