People use their sunshades and hats to block the sun when visiting the Qianmen Street in Beijing, capital of China, May 25, 2015. The city's meteorological department issued this year's first blue alert. (CNS photo/Xiongran)
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People use their sunshades and hats to block the sun when visiting the Qianmen Street in Beijing, capital of China, May 25, 2015. The city's meteorological department issued this year's first blue alert. (CNS photo/Xiongran)