By Yang Jun in Guiyang | chinadaily.com.cn| Updated: 2021-03-02Print
A photo taken in June 1997 (top) shows a
rugged section of road in Rongjiang county, Guizhou province, while a
photo taken in June 2012 (bottom),shows the newly built highway. [Photo
by Li Changhua/For chinadaily.com.cn]