Photo taken on March 26, 2021 shows a view of the lighting system project aided by China at Patuxay monument park in Vientiane, Laos. Officials from both China and Laos have sung high praise for the newly-finished China-aided lighting system in the Lao capital's downtown area, saying it is a symbol of two countries' friendship. (Photo by Kaikeo Saiyasane/Xinhua)