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Photo taken on Sept. 28, 2020 shows the construction site of the Xiang Ngeun No. 3 Tunnel in Luang Prabang Province, Laos. Xiang Ngeun No. 3 Tunnel, the last tunnel along the China-Laos Railway, was drilled through on Tuesday. So far, all the 75 tunnels across the China-Laos Railway have been holed. The successful completion of the tunnels indicates that the controlling factors affecting the China-Laos railway project have basically been removed. (Photo by Kaikeo Saiyasane/Xinhua)
