A unique social experiment that brings together elderly people in a retirement community with a group of four-year-olds. 译文(2): 这是一个独特的社会实验，它把退休社区的老年人和一群四岁的孩子聚集在一起。
简介：A unique social experiment that brings together elderly people in a retirement community with a group of four-year-olds. 译文(2): 这是一个独特的社会实验，它把退休社区的老年人和一群四岁的孩子聚集在一起。
