Workers work in a greenhouse in Leting County, north China's Hebei Province, Oct. 6, 2017. More than 1,333 hectares of vegetable and fruit bases were built in Leting County. (Xinhua/Yang Shiyao)
Workers work in a greenhouse in Leting County, north China's Hebei Province, Oct. 6, 2017. More than 1,333 hectares of vegetable and fruit bases were built in Leting County. (Xinhua/Yang Shiyao)