A paramilitary policeman teaches children self-defense techniques in Qinhuangdao, Hebei province, China, August 24, 2016. (Photo by Reuters/China Daily)





Workers sort parcels at a YTO Express logistics centre in Beijing, China, March 25, 2016. (Photo by Jason Lee/Reuters)





People get off a rickshaw in a restaurant street in Beijing, China, August 25, 2016. (Photo by Thomas Peter/Reuters)





A worker stands next to a pile of bricks at night in Beijing, China, August 25, 2016. (Photo by Thomas Peter/Reuters)





People line up at the window of a food stall in Beijing, China, August 25, 2016. (Photo by Thomas Peter/Reuters)





Kitchen staff sit in a back alley behind a restaurant in Beijing, China, August 25, 2016. (Photo by Thomas Peter/Reuters)





A street cleaner uses his mobile phone in Beijing, China, August 25, 2016. (Photo by Thomas Peter/Reuters)





A woman carrying an umbrella walks past people sleeping in a street in Beijing, China, August 27, 2016. (Photo by Thomas Peter/Reuters)





A man uses a spear as he practices martial art in a street at night in Beijing, China, August 27, 2016. (Photo by Thomas Peter/Reuters)





Men walk past a public telephone outside a hospital in Beijing, China, August 27, 2016. (Photo by Thomas Peter/Reuters)





A woman wearing a facekini mask at the beach during a heatwave in the area Qingdao City, China on August 17, 2016. Many middle-aged women wear the masks to protect the skin from the sun and jellyfish and algae. (Photo by Sipa Asia/Rex Features/Shutterstock)





Women wearing facekinis pose for the camera as they visit a beach in Qingdao, Shandong Province, China, August 16, 2016. (Photo by Reuters/Stringer)





In this picture taken on August 22, 2016 people board a cable car in Chongqing. (Photo by Nicolas Asfouri/AFP Photo)





A man (bottom L) walks past the Hong Kong Cultural Centre as he makes a delivery in the territory's Tsim Sha Tsui district on August 23, 2016. (Photo by Isaac Lawrence/AFP Photo)





An illuminated display at a lantern fair near Fuxian lake, Chengjiang county, Yuxi City, China on August 18, 2016. (Photo by Xinhua/Barcroft Images)





A couple walks in front of a work safety propaganda billboard in Beijing, China, Thursday, August 25, 2016. Work safety, which has long been sidelined by China's pursuit of profits and economic growth, kills tens of thousands each year. Chinese character at right reads “Safe Production”. (Photo by Ng Han Guan/AP Photo)





In this photo taken Wednesday, August 24, 2016, a child jumps from a fountain near the sign for Beijing Chaoyang Hospital, one of the hospitals approved for organ transplants, in Beijing, China. China claims it ended the harvesting of executed inmates' organs for transplants in January 2015. Some foreign doctors who have worked in China say authorities are behaving more responsibly, but other observers say China hasn't done enough to prove that it's fulfilled that pledge. (Photo by Ng Han Guan/AP Photo)





A farmer checks the growth of sorghum in the fields in Wangyu Village of Zaozhuang City, east China's Shandong Province on August 23, 2016. (Photo by Zhang Qiang/Xinhua via ZUMA Wire)





A woman uses her mobile phone to take photos of a girl posing in front of a polar bear model outside a mall in Beijing on August 24, 2016. (Photo by Wang Zhao/AFP Photo)





This general view shows apartment buildings in Chongqing on August 22, 2016. Claiming to be the world's largest building by floor space, the 1,760,000 square metres of the New Century Global Center are a monument to growing Chinese consumer power, packed with shoppers – and beach bathers a thousand kilometres from the coast. (Photo by Nicolas Asfouri/AFP Photo)





In this July 31, 2015, file photo, residents celebrate as Beijing is announced as the host city for the 2022 Winter Olympics at the ski resort region of Chongli where the Nordic skiing, ski jumping, and other outdoor Olympic events will be held in northern China's Hebei province. The next three Olympics are headed for relatively calmer ports of call in South Korea, Japan and China following the organizational drama surrounding the 2014 Winter Olympics in Russia and the just completed Summer Games in Brazil, but challenges remain, especially when it comes to finances and generating enthusiasm among home audiences. (Photo by Ng Han Guan/AP Photo)





Visitors walk across a glass-floor suspension bridge in Zhangjiajie in southern China's Hunan Province Saturday, August 20, 2016. The bridge, which opened to the public on a trial basis on Saturday, spans 430 meters (1,410 feet) and rises about 300 meters (984 feet) above a valley in a scenic zone, making it the world's highest and longest glass-bottomed bridge according to Chinese state media. (Photo by Chinatopix via AP Photo)





Visitors walk across a glass-floor suspension bridge in Zhangjiajie in southern China's Hunan Province Saturday, August 20, 2016. (Photo by Chinatopix via AP Photo)





A tourist poses on the glass-bottom bridge at Zhangjiajie Grand Canyon on August 20, 2016 in Zhangjiajie, Hunan Province of China. (Photo by VCG/VCG via Getty Images)





Visitors walk across a glass-floor suspension bridge in Zhangjiajie in southern China's Hunan Province Saturday, August 20, 2016. (Photo by Chinatopix via AP Photo)





Visitors walk across a glass-floor suspension bridge in Zhangjiajie in southern China's Hunan Province Saturday, Aug. 20, 2016. The bridge, which opened to the public on a trial basis on Saturday, spans 430 meters (1,410 feet) and rises about 300 meters (984 feet) above a valley in a scenic zone, making it the world's highest and longest glass-bottomed bridge according to Chinese state media. (Chinatopix via AP)





A tourist takes a selfie on the glass-bottom bridge at Zhangjiajie Grand Canyon on August 20, 2016 in Zhangjiajie, Hunan Province of China. The Zhangjiajie Grand Canyon's glass-bottomed bridge welcame its trial operation on Saturday and about 8,000 tourists crowded to view the grand glass bridge. Stretching 430 meters long and 6 meters wide, hovering over a 300-meter-deep valley between two cliffs in the canyon area, the much-awaited "world's highest and longest" glass-bottomed bridge has already set world records for its architecture and construction. (Photo by VCG/VCG via Getty Images)