Ngày 17/6/2019 tập trung học sinh lần 2
Xie Bihua (L), a 47-year-old teacher of a rural primary school located at the mountainous area, leads on a small dirt road as he walks with his students after school, in Weining Yi, Hui, and Miao Autonomous County, Guizhou province, China, May 28, 2015. REUTERS/Stringer