In this Saturday, May 21, 2016 photo, people dance in unison outside of the National Stadium, also known as the Bird's Nest, in Beijing. According to the Guinness World Records website, 31,697 participants in Beijing, Shanghai and four other cities set a new world record on Saturday for mass plaza dancing in multiple locations by performing choreographed dance moves together for more than five minutes. (Photo by Chinatopix via AP Photo)





A worker puts aside handicrafts of bird nests as she sits among them in Linyi, Shandong Province, China, May 30, 2016. (Photo by Reuters/Stringer)





People perform yoga at a tea culture park to promote the tea there, in Enshi, Hubei province, April 24, 2016. (Photo by Reuters/Stringer)





Rescuers walk with equipment at a site of forest fires in Hulun Buir, north China's Inner Mongolia Autonomous Region, China, May 20, 2016. (Photo by Reuters/Stringer)





A couple takes a rest on the ground of Tiananmen Square where the portrait of late Chinese chairman Mao Zedong is seen, on the 50th anniversary of the start of the Cultural Revolution in Beijing, China, May 16, 2016. (Photo by Kim Kyung-Hoon/Reuters)





A cleaner sweeps ground in front of the Mausoleum of late Chinese chairman Mao Zedong at Tiananmen Square on the 50th anniversary of the start of the Cultural Revolution in Beijing, China, May 16, 2016. (Photo by Kim Kyung-Hoon/Reuters)





Honour guards attend a practice prior to the welcome ceremony for Afghan Chief Executive Officer Abdullah Abdullah at the Great Hall of the People in Beijing, China, May 16, 2016. (Photo by Kim Kyung-Hoon/Reuters)





A man walks past student dormitories where clothes are hang at balconies in Wuhan, Hubei Province, China, May 17, 2016. (Photo by Reuters/Stringer)





Parents burn incense as they pray for their children ahead of the upcoming China national college entrance exam, in Maotanchang, Anhui province, May 21, 2016. (Photo by Reuters/Stringer)





A woman checks her smartphone outside a restaurant at Tsim Sha Tsui shopping district in Hong Kong, China, May 31, 2016. (Photo by Bobby Yip/Reuters)





Children watch robots dancing at a science and technology camp in Suzhou, Jiangsu province, China May 22, 2016. (Photo by Reuters/China Daily)





Soldiers of China's Liberation Army (PLA) air force stand on military vehicles as they attend a group wedding in Anshan, Liaoning, China, May 21, 2016. (Photo by Reuters/Stringer)





A soldier of China's Liberation Army (PLA) air force poses for pictures with his wife as they attend a group wedding in Anshan, Liaoning, China, May 21, 2016. (Photo by Reuters/Stringer)





A vendor sells cups of Tingyi instant noodles at Beijing Railway Station in Beijing, China, May 25, 2016. (Photo by Jason Lee/Reuters)





A woman walks on steps lined with plastic cups, an art project of four college students, in Wuhan, Hubei Province, China, May 24, 2016. (Photo by Reuters/Stringer)





Discarded utomobiles are pictured at a recycling centre in Yichang, Hubei Province, China, May 24, 2016. (Photo by Reuters/China Daily)





An aerial view of plants arranged in the shape of the Eight Diagrams is seen at a park in Zunyi, Guizhou Province, China, May 27, 2016. (Photo by Reuters/Stringer)





Pupils present scrolls of traditional Chinese calligraphy at a school to increase awareness and respect to traditional Chinese culture in Yiwu, Zhejiang Province, China, May 27, 2016. (Photo by Reuters/Stringer)





Buildings of Wanda Mall in shapes of blue and white porcelain are seen ahead of its official opening in Nanchang, Jiangxi Province, China, May 27, 2016. (Photo by Reuters/Stringer)





Villagers and tourists catch ducks in a pond during local celebrations of ethnic Yao culture in Qingyuan, Guangdong Province, China, May 28, 2016. (Photo by Reuters/Stringer)





People carry an ethnic Miao dragon boat made by a local craftsman during a parade, ahead of the annual Dragon Boat festival, in Shibing, Guizhou Province, China, May 28, 2016. The Chinese characters on the red banner say, “The number one Chinese Ethnic Miao's dragon boat”. (Photo by Reuters/Stringer)





Soldiers of China's People's Liberation Army (PLA) take part in a training exercise in Heihe, Heilongjiang Province, May 29, 2016. (Photo by Reuters/Stringer)





Graduates take pictures in front of the statue of late Chinese leader Mao Zedong at Fudan University in Shanghai, China May 31, 2016. (Photo by Aly Song/Reuters)





A security guard checks speed of electric bicycles at Fudan University in Shanghai, China May 31, 2016. (Photo by Aly Song/Reuters)





A woman walks past advertisements from nearby retail shops at Mongkok shopping district in Hong Kong, China, May 31, 2016. (Photo by Bobby Yip/Reuters)





Students work on an improvised car assembly line as a group of foreign reporters visits a vocational school on a government organised tour in Lhasa, Tibet Autonomous Region, China, November 19, 2015. (Photo by Damir Sagolj/Reuters)





An installation built with spare tyres by BYD workers is displayed inside an assembly line of the automobile maker in Shenzhen, China May 25, 2016. (Photo by Bobby Yip/Reuters)





Staff of Zhenxiangfudi restaurant, whose manager plans to offer more beef and lamb meat dishes, if the pork price keeps rising, work at their kitchen in central Beijing, China May 18, 2016. (Photo by Damir Sagolj/Reuters)





Wang Yuhong, a local vendor who doesn't sell pork buns anymore because of the high price of pork, works in her kitchen in central Beijing, China May 18, 2016. (Photo by Damir Sagolj/Reuters)





Staff of Zhenxiangfudi restaurant prepare a pork meat dish at their kitchen in central Beijing, China May 18, 2016. (Photo by Damir Sagolj/Reuters)





A student, wearing a traditional costume and headdress, stands in line for interviews during a recruitment held by an airline company, hoping to stand out from more than 500 candidates for airline stewardess positions, in Chengdu, Sichuan Province, China, May 27, 2016. (Photo by Reuters/Stringer)





Pupils salute as they participate in a flag-raising ceremony with their teacher at a primary school in Longli county, Guizhou Province, China, May 31, 2016. (Photo by Reuters/Stringer)





Fishing boats moored in a port in the Guangxi Zhuang autonomous region in Beihi, China on May 26, 2016. (Photo by Xinhua/Barcroft Images)





A Chinese woman poses for a smartphone photo with a worker dressed in a storm trooper costume at the Wanda Mall at the Wanda Cultural Tourism City in Nanchang in southeastern China's Jiangxi province, Saturday, May 28, 2016. China's largest private property developer, the Wanda Group, opened an entertainment complex on Saturday that it's positioning as a distinctly homegrown rival to Disney and its $5.5 billion Shanghai theme park opening next month. (Photo by Mark Schiefelbein/AP Photo)





This photo taken on May 24, 2016 shows senior high students posing for photos with the slogan “release your stress, let your dream fly” before the college entrance exams at a high school in Handan, north China's Hebei province. The three-day 2016 college entrance exam will start on June 7. (Photo by AFP Photo/Stringer)





This photo taken on May 24, 2016 shows senior high students flying paper planes to release stress before the college entrance exams at a high school in Handan, north China's Hebei province. (Photo by AFP Photo/Stringer)





A man sleeps under a pavilion during a warm day in Beijing, China, Monday, May 16, 2016. As summer approaches, throngs of visitors are expected to visit the Chinese capital, a popular destination for both domestic and foreign tourists. (Photo by Ng Han Guan/AP Photo)





In this March 31, 2016 photo, a group of elderly women rest on their wheelchairs at a residential compound in Beijing. When people over 80 in Beijing take a bus, see a doctor or spend money, their activities are digitally tracked by the government, as part of an effort to improve services for the country's rapidly growing elderly population. The data amassed with each swipe of the multi-purpose “Beijing Connect” old person's card goes into a massive database of the elderly in the capital. City authorities hope the information will enable them to better cope with their burgeoning population of over-60s, which already stands at 3 million. (Photo by Andy Wong/AP Photo)





This photo taken on May 24, 2016 shows senior high school students studying at night to prepare for the college entrance exams at a high school in Lianyungang, east China's Jiangsu province. The three-day 2016 college entrance exam will start on June 7. (Photo by AFP Photo/Stringer)





A topless man stands on top of a set of traffic signals as he threatens to jump on May 24, 2016 in Changsha, China. Police officers, fire workers and traffic police set up an inflatable safety cushion, but he missed it when he fell after trying to jump onto the overpass. An ambulance hurried the man to nearby hospital. (Photo by VCG via Getty Images)