彩神app合法吗官方Track laying work of Yunnan

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Workers lay railway tracks at the construction site of the Chengdu-Guiyang railway line in Bijie, southwest China's Guizhou Province, Oct. 10, 2018. The track laying work of the Yunnan-Guizhou section of the Chengdu-Guiyang railway line started on Wednesday. (Xinhua/Liu Xu)

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