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Aerial photo taken on March 14, 2019 shows the Yachihe Bridge of the Chengdu-Guiyang high-speed railway under construction in Qianxi, southwest China's Guizhou Province, March 14, 2019. (Xinhua/Liu Xu)
Aerial photo taken on March 14, 2019 shows the Yachihe Bridge of the Chengdu-Guiyang high-speed railway under construction in Qianxi, southwest China's Guizhou Province, March 14, 2019. (Xinhua/Liu Xu)