Chinese President Xi Jinping (L rear), also general secretary of the Communist Party of China Central Committee, and Lao President Bounnhang Vorachit (C rear), also general secretary of the Lao People's Revolutionary Party Central Committee, witness the signing of a deal to enhance cooperation under new circumstances between the two countries after meeting again in Vientiane, Laos, Nov. 14, 2017. (Xinhua/Ding Lin)