A villager picks grapes inside a greenhouse at Chucun Village of Tanglin Town in Zaoqiang County, north China's Hebei province, June 25, 2019. Over 2,000 mu (about 133.3 hectares) of grapes greenhouse plantation promoted by local authorities has boosted more than 1,000 local residents' income in recent years. (Xinhua/Li Xiaoguo)