The upper part of this combo photo taken in 1994 shows six-year-old Zhou Aiji riding a bike at home in Hefei, east China's Anhui Province. At that time, Zhou's family lived in an apartment built with prefabricated slabs. The lower part of the combo photo taken by Liu Junxi on Nov. 11, 2018 shows 30-year-old Zhou Aiji posing for a photo in her new house in Hefei. Zhou, who is now a public servant, resides in an apartment of about 160 square meters, about three times bigger than her previous home. (Xinhua)