Aerial photo taken on April 22, 2018 shows the interchange of Baotou-Maoming expressway and Yongshun-Jishou highway in Xiangxi Tujia and Miao autonomous prefecture, Central China’s Hunan province.[Photo/Xinhua]

Aerial photo taken on April 22, 2018 shows the interchange of Baotou-Maoming expressway and Yongshun-Jishou highway in Xiangxi Tujia and Miao autonomous prefecture, Central China’s Hunan province.[Photo/Xinhua]

Aerial photo taken on April 22, 2018 shows the interchange of Baotou-Maoming expressway and Yongshun-Jishou highway in Xiangxi Tujia and Miao autonomous prefecture, Central China’s Hunan province.[Photo/Xinhua]