Chinese President Xi Jinping (R front) and his Kazakh counterpart Nursultan Nazarbayev (L front) inspect via videolink two key hubs of the cross-border transportation at the Chinese national pavilion of the Expo 2017 in Astana, Kazakhstan, June 8, 2017. Xi, accompanied by Nazarbayev, on Thursday visited the Chinese national pavilion of the Expo 2017 in Astana, and urged bilateral efforts to facilitate the China-Kazakhstan cross-border transportation. (Xinhua/Ding Lin)