NANNING, July 24, 2016 (Xinhua) -- Residents wearing sunbonnets ride electric bicycles in Nanning, capital city of south China's Guangxi Zhuang Autonomous Region, July 24, 2016. Temperatures exceeded 37 degrees Celsius in some parts of Guangxi Sunday, and local meteorological authorities issued an blue alarm over high temperatures. (Xinhua/Zhou Hua)