那是一个闷热的夏日午后，在北京化工大学附近某公交车站，一阵阵热浪向负责指挥车辆的田蒙（音译）袭来。
It 's a stiflingly hot summer afternoon in Beijing . Waves of heat wash over Tian Meng as he signals city buses at a stop near Beijing University of Chemical Technology .
田蒙