Xu Mengjiao (L) helps a customer select succulent plants at a greenhouse in Renqiu City, north China's Hebei Province, Jan. 21, 2018. Tian Zhendong and Xu Mengjiao, a couple in Renqiu City, resigned their jobs and started succulent plants business in early 2017. After one year's development, their garden has introduced 300 plus kinds of succulent plants and cultivated 200,000 plants, and yields benefits through on-line and off-line sale. (Xinhua/Mu Yu)