Aerial view of Huixing Expressway threading through karst landform in China's Guizhou
Source: Xinhua| 2018-08-31 18:40:22|Editor: Li Xia
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Aerial photo taken on Aug. 30, 2018 shows the Huixing Expressway threading through the karst landform in Zhenfeng County, southwest China's Guizhou Province. Guizhou has built 5,833 kilometers of expressway by the end of 2017. (Xinhua/Liu Xu)