A staff member introduces a variety of flowers to a customer at the sales hall of an ecological agriculture park in Gu'an County, north China's Hebei Province, Oct. 27, 2019. Catering to the flower market demands in Beijing and Tianjin, the local government of Gu'an County has been trying to explore flower economy in recent years and already set up an industrial chain covering cultivation, transportation and marketing, in an effort to adjust agricultural industrial structures and boost the rural economy. (Xinhua/Wang Xiao)