Bullet train attendants participate in a training course in Hangzhou, capital city of east China's Zhejiang Province, Aug. 17, 2016. Over 2,000 crew members of bullet trains have received training since August so as to provide better service for passengers in Hangzhou, the hosting city for the upcoming G20 Summit. (Xinhua/Huang Zongzhi)
Chinese President Xi Jinping, Chinese Premier Li Keqiang, and Yu Zhengsheng, chairman of the National Committee of the Chinese People's Political Consultative Conference, Liu Yunshan, a member of the Standing Committee of the Political Bureau of the Communist Party of China Central Committee, meet with representatives of performers before an opening gala of the Fifth Minorities Art Festival in Beijing, capital of China, Aug. 18, 2016. Xi Jinping, Li Keqiang, Yu Zhengsheng, Liu Yunshan and other senior leaders joined over 3,000 spectators to watch the gala Thursday evening in Beijing. (Xinhua/Yao Dawei)
Workers process chilies at a workshop in Xuan'en County, central China's Hubei Province, Aug. 19, 2016. Chilies have entered the harvest season recently. (Xinhua/Song Wen)
Passengers take on the Zhengzhou metro Line 2 in Zhengzhou, capital of central China's Henan Province, Aug. 19. 2016. The first-stage project of Zhengzhou Metro Line 2 went into passenger-carrying trial run here on Friday to relieve road congestion. (Xinhua/Li An)
A Chinese fan at the Olympic games in Rio.
People walk in water in Haikou, capital of South China's Hainan province, Aug 18, 2016. Hainan was affected by typhoon "Dianmu", the eighth of the season, with many regions greeting heavy rainfalls.[Photo/Xinhua]
Children pose for a photo with cartoon characters during the 8th China International Animation Copyright Fair in Dongguan, south China's Guangdong Province, Aug. 18, 2016. A total of 503 companies attended this year's animation copyright fair which kicked off here on Thursday. (Photo:Xinhua/Liang Xu)
Children try a VR game during the 8th China International Animation Copyright Fair in Dongguan, south China's Guangdong Province, Aug. 18, 2016.
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Myanmar's State Counsellor Aung San Suu Kyi visits the Museum of Terra-cotta Warriors and Horses of Qin Shihuang, in Xi'an, capital of northwest China's Shaanxi Province, Aug. 20, 2016. Aung San Suu Kyi began a five-day official visit to China on Aug. 17. (Xinhua/Li Yibo)
Photo taken on Aug. 20, 2016 shows a residential building on fire at Zigu Road in Nanchang, capital of east China's Jiangxi Province. A fire broke out at a residential building in Nanchang on Saturday and sounds of explosion were heard, witnesses said. Fire-fighters have arrived and casualties are yet to be known. (Xinhua/Yu Ze)
People participate in a bubble carnival at a water park in Yantai, east China's Shandong Province, Aug. 19, 2016. (Xinhua/Shen Jizhong)
Debris of a small helicopter is seen in water of Nenjiang River in Qiqihar, northeast China's Heilongjiang Province, Aug. 17, 2016. A helicopter crashed in Nenjiang River Wednesday afternoon in Qiqihar, with no harm on three people onboard. (Xinhua/Wang Yonggang)
A bus burst into flames near Dongyingfang bus station in Beijing on Saturday morning, Aug. 20, 2016, with no immediate report of casualty. [Photo/Weibo]
Tourists take photos on the Zhangjiajie Grand Canyon's glass-bottom bridge in Zhangjiajie scenic spot, central China's Hunan Province, Aug. 20, 2016. Zhangjiajie Grand Canyon's glass-bottom bridge was put into trial operation here on Saturday. Spanning two cliffs in the canyon area, the bridge stretch 430 meters long and 6 meters wide, hovering over a 300-meter-deep valley. The bridge deck is paved with transparent glasses and can accommodate up to 800 people at a time. (Xinhua/Long Hongtao)
Photo taken on Aug. 20, 2016 shows the aerial view of Zhangjiajie Grand Canyon's glass-bottom bridge in Zhangjiajie scenic spot, central China's Hunan Province, Aug. 20, 2016.
Chen Long of China celebrates his victory over Lee Chong Wei of Malaysia during the men's singles final of badminton competition at the 2016 Rio Olympic Games in Rio de Janeiro, Brazil, on Aug. 20, 2016. Chen took the title of the event after beating Lee 2-1. (Xinhua/Wang Peng)
China's Liu Shiwen (L) and Ding Ning celebrate after winning a point against Petrissa Solja of Germany and Xiao Na Shan of Germany in the table tennis women's team gold medal match in Rio de Janeiro, Brazil on Aug 16, 2016. [Photo by Wei Xiaohao/chinadaily.com.cn]
Rescuers work at a coach accident site in Anshun, southwest China's Guizhou Province, Aug. 20, 2016. A coach carrying 39 people lurched to the side on an expressway at around 9 p.m. Saturday, leaving 10 people dead and 10 people injured. (Xinhua)