Xinhua Headlines: Past and present: 40 years of change in the lives of the Chinese people

The left part of this combo photo taken in January 1993 shows four-year-old Wu Zhuoying posing for a photo in front an old TV set at home in Harbin, capital of northeast China's Heilongjiang Province. The right part of the combo photo taken by Wang Kai on Dec. 4, 2018 shows 29-year-old Wu Zhuoying posing for a photo in front of a smart TV at the living room of her 90-square-meter apartment in Harbin. Wu is now a nurse of the First Affiliated Hospital of Harbin Medical University. (Xinhua)