Aerial photo taken on Aug 4, 2019 shows the rural scenery in Zhanhai Township of Zhangbei County, north China's Hebei Province. A rural complex opened on Sunday, which combines agriculture with scientifc research and tourism, as part of the county's rural revitalization efforts. (Xinhua/Xing Guangli)

Aerial photo taken on Aug 4, 2019 shows the rural scenery in Zhanhai Township of Zhangbei County, north China's Hebei Province. A rural complex opened on Sunday, which combines agriculture with scientifc research and tourism, as part of the county's rural revitalization efforts. (Xinhua/Xing Guangli)

Aerial photo taken on Aug 4, 2019 shows the rural scenery in Zhanhai Township of Zhangbei County, north China's Hebei Province. A rural complex opened on Sunday, which combines agriculture with scientifc research and tourism, as part of the county's rural revitalization efforts. (Xinhua/Xing Guangli)