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Photo taken with a mobile phone shows people running during a fire drill at the Beijing Daxing International Airport in Beijing, capital of China, on July 9, 2019. (Xinhua/Wu Wenxu)
Photo taken with a mobile phone shows people running during a fire drill at the Beijing Daxing International Airport in Beijing, capital of China, on July 9, 2019. (Xinhua/Wu Wenxu)