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Photo taken on Aug. 19, 2019 shows the construction site of the Vientiane to Vangvieng section of China-Laos expressway in Laos. (Photo by Liu Ailun/Xinhua)
Photo taken on Aug. 19, 2019 shows the construction site of the Vientiane to Vangvieng section of China-Laos expressway in Laos. (Photo by Liu Ailun/Xinhua)