Li Ping plays with her pet Ding Ding on a street in Hefei, capital of east China's Anhui Province, Nov. 17, 2016. Li Ping, a breakfast store owner, rescued a dog named Ding Ding injured on the hind leg in 2015. However the treatment for the leg was ineffective. Luck happened when some kind people created a mobility cart that worked very well for Ding Ding. (Xinhua/Guo Chen)