![In this file photo issued on March 8, 1975, parents buy toys for their children at a shop in east China\'s Shanghai. As China celebrates the International Children\'s Day, there arises the occasion for grown-ups to think back over the joys of childhood. With the evolution of technology and lifestyle, children are exposed to a wider range of entertainment. Nevertheless, joy would remain a childhood motif no matter how its forms change with time. (Xinhua/Shen Zhengchu)](http://www.ecns.cn/hd/2018/06/01/abadcc61713d4ec1bf3580d17c5c2679.jpg)
In this file photo issued on March 8, 1975, parents buy toys for their children at a shop in east China's Shanghai. As China celebrates the International Children's Day, there arises the occasion for grown-ups to think back over the joys of childhood. With the evolution of technology and lifestyle, children are exposed to a wider range of entertainment. Nevertheless, joy would remain a childhood motif no matter how its forms change with time. (Xinhua/Shen Zhengchu)
![In this file photo taken on Dec. 18, 2007, students play a classic marble game at Changjianglu Primary School in Nanjing, east China\'s Jiangsu Province. As China celebrates the International Children\'s Day, there arises the occasion for grown-ups to think back over the joys of childhood. With the evolution of technology and lifestyle, children are exposed to a wider range of entertainment. Nevertheless, joy would remain a childhood motif no matter how its forms change with time. (Xinhua/Sun Can)](http://www.ecns.cn/hd/2018/06/01/0506815fe0764b1b8d413e872f248627.jpg)
In this file photo taken on Dec. 18, 2007, students play a classic marble game at Changjianglu Primary School in Nanjing, east China's Jiangsu Province. As China celebrates the International Children's Day, there arises the occasion for grown-ups to think back over the joys of childhood. With the evolution of technology and lifestyle, children are exposed to a wider range of entertainment. Nevertheless, joy would remain a childhood motif no matter how its forms change with time. (Xinhua/Sun Can)
![In this file photo issued on July 6, 1963, girls play Chinese jump rope in east China\'s Shanghai. As China celebrates the International Children\'s Day, there arises the occasion for grown-ups to think back over the joys of childhood. With the evolution of technology and lifestyle, children are exposed to a wider range of entertainment. Nevertheless, joy would remain a childhood motif no matter how its forms change with time. (Xinhua/Xia Daoling)](http://www.ecns.cn/hd/2018/06/01/b77bb040568e49489f66a9836f65937f.jpg)
In this file photo issued on July 6, 1963, girls play Chinese jump rope in east China's Shanghai. As China celebrates the International Children's Day, there arises the occasion for grown-ups to think back over the joys of childhood. With the evolution of technology and lifestyle, children are exposed to a wider range of entertainment. Nevertheless, joy would remain a childhood motif no matter how its forms change with time. (Xinhua/Xia Daoling)
![In this file photo issued on August 1, 1994, two boys practise skateboard in a square in Beijing, capital of China. As China celebrates the International Children\'s Day, there arises the occasion for grown-ups to think back over the joys of childhood. With the evolution of technology and lifestyle, children are exposed to a wider range of entertainment. Nevertheless, joy would remain a childhood motif no matter how its forms change with time. (Xinhua/Zhang Xu)](http://www.ecns.cn/hd/2018/06/01/52be97eab8344261bfa47358a5952257.jpg)
In this file photo issued on August 1, 1994, two boys practise skateboard in a square in Beijing, capital of China. As China celebrates the International Children's Day, there arises the occasion for grown-ups to think back over the joys of childhood. With the evolution of technology and lifestyle, children are exposed to a wider range of entertainment. Nevertheless, joy would remain a childhood motif no matter how its forms change with time. (Xinhua/Zhang Xu)
![In this file photo taken on Sept. 16, 2016, children enjoy themselves in a foam activity in a tourist resort in southwest China\'s Chongqing. As China celebrates the International Children\'s Day, there arises the occasion for grown-ups to think back over the joys of childhood. With the evolution of technology and lifestyle, children are exposed to a wider range of entertainment. Nevertheless, joy would remain a childhood motif no matter how its forms change with time. (Xinhua/Zhang Yi)](http://www.ecns.cn/hd/2018/06/01/3fd559d32d944eac81be2985ea470b3b.jpg)
In this file photo taken on Sept. 16, 2016, children enjoy themselves in a foam activity in a tourist resort in southwest China's Chongqing. As China celebrates the International Children's Day, there arises the occasion for grown-ups to think back over the joys of childhood. With the evolution of technology and lifestyle, children are exposed to a wider range of entertainment. Nevertheless, joy would remain a childhood motif no matter how its forms change with time. (Xinhua/Zhang Yi)
![In this file photo issued on Feb. 10, 1990, children play a ball game at a boarding school in southwest China\'s Tibet Autonomous Region. As China celebrates the International Children\'s Day, there arises the occasion for grown-ups to think back over the joys of childhood. With the evolution of technology and lifestyle, children are exposed to a wider range of entertainment. Nevertheless, joy would remain a childhood motif no matter how its forms change with time. (Xinhua/Ma Jingqiu)](http://www.ecns.cn/hd/2018/06/01/8a9927a0f9664917aa85aadd2f8139ba.jpg)
In this file photo issued on Feb. 10, 1990, children play a ball game at a boarding school in southwest China's Tibet Autonomous Region. As China celebrates the International Children's Day, there arises the occasion for grown-ups to think back over the joys of childhood. With the evolution of technology and lifestyle, children are exposed to a wider range of entertainment. Nevertheless, joy would remain a childhood motif no matter how its forms change with time. (Xinhua/Ma Jingqiu)
![In this file photo issued on July 27, 1985, a boy tries a gaming console during a toy fair in Fuzhou, southeast China\'s Fujian Province. As China celebrates the International Children\'s Day, there arises the occasion for grown-ups to think back over the joys of childhood. With the evolution of technology and lifestyle, children are exposed to a wider range of entertainment. Nevertheless, joy would remain a childhood motif no matter how its forms change with time. (Xinhua/Huang Xingquan)](http://www.ecns.cn/hd/2018/06/01/99fb7b7d6b494d5eafe352269a0a8948.jpg)
In this file photo issued on July 27, 1985, a boy tries a gaming console during a toy fair in Fuzhou, southeast China's Fujian Province. As China celebrates the International Children's Day, there arises the occasion for grown-ups to think back over the joys of childhood. With the evolution of technology and lifestyle, children are exposed to a wider range of entertainment. Nevertheless, joy would remain a childhood motif no matter how its forms change with time. (Xinhua/Huang Xingquan)
![In this file photo taken on May 28, 2017, children wear VR (virtual reality) equipment during a technology event in Xi\'an, northwest China\'s Shaanxi Province. As China celebrates the International Children\'s Day, there arises the occasion for grown-ups to think back over the joys of childhood. With the evolution of technology and lifestyle, children are exposed to a wider range of entertainment. Nevertheless, joy would remain a childhood motif no matter how its forms change with time. (Xinhua/Liu Xiao)](http://www.ecns.cn/hd/2018/06/01/a62d8bcb75424fecb1e7cb178c96cce8.jpg)
In this file photo taken on May 28, 2017, children wear VR (virtual reality) equipment during a technology event in Xi'an, northwest China's Shaanxi Province. As China celebrates the International Children's Day, there arises the occasion for grown-ups to think back over the joys of childhood. With the evolution of technology and lifestyle, children are exposed to a wider range of entertainment. Nevertheless, joy would remain a childhood motif no matter how its forms change with time. (Xinhua/Liu Xiao)
![In this file photo taken on July 28, 2006, children ride a thrill machine at an amusement park in Hangzhou, east China\'s Zhejiang Province. As China celebrates the International Children\'s Day, there arises the occasion for grown-ups to think back over the joys of childhood. With the evolution of technology and lifestyle, children are exposed to a wider range of entertainment. Nevertheless, joy would remain a childhood motif no matter how its forms change with time. (Xinhua/Shao Quanda)](http://www.ecns.cn/hd/2018/06/01/9938b0c243464f62afe819d3ade17041.jpg)
In this file photo taken on July 28, 2006, children ride a thrill machine at an amusement park in Hangzhou, east China's Zhejiang Province. As China celebrates the International Children's Day, there arises the occasion for grown-ups to think back over the joys of childhood. With the evolution of technology and lifestyle, children are exposed to a wider range of entertainment. Nevertheless, joy would remain a childhood motif no matter how its forms change with time. (Xinhua/Shao Quanda)
![In this file photo taken in 1983, children play a bag toss game at a public park in Harbin, northeast China\'s Heilongjiang Province. As China celebrates the International Children\'s Day, there arises the occasion for grown-ups to think back over the joys of childhood. With the evolution of technology and lifestyle, children are exposed to a wider range of entertainment. Nevertheless, joy would remain a childhood motif no matter how its forms change with time. (Xinhua/Hu Wei)](http://www.ecns.cn/hd/2018/06/01/8bb8cd1ff0d945528d629fb2a9007266.jpg)
In this file photo taken in 1983, children play a bag toss game at a public park in Harbin, northeast China's Heilongjiang Province. As China celebrates the International Children's Day, there arises the occasion for grown-ups to think back over the joys of childhood. With the evolution of technology and lifestyle, children are exposed to a wider range of entertainment. Nevertheless, joy would remain a childhood motif no matter how its forms change with time. (Xinhua/Hu Wei)