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](http://thmyan.pgdthuthua.edu.vn/wp-content/uploads/sites/190/2017/03/6-1433233795.jpg)
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