This combination photo taken on Aug. 2, 2016 shows 39 degrees Celsius on a thermometer (upper) and taken on Aug. 1, 2016 shows people gathering to play the mahjong in a swimming pool in Chongqing, southwest China. Heat wave engulfed most part of China recently. Even the chilliest city of China Hulun Buir in north China's Inner Mongolia Autonomous Region, registered a temperature of 44.1 degrees Celsius (about 111 degrees Fahrenheit) on Wednesday, the highest in the city's history. (Xinhua/Tang Yi)
