Workers are seen at a production line of a navel orange company in Zigui County, central China's Hubei Province, Jan. 14, 2018. Zigui County, known as China's hometown of navel oranges, has 300,000 mu (20,000 hectares) of navel oranges with 150,000 related workers. Most farmers live on planting navel oranges. Zigui now produces more than 30 varieties of oranges meeting the markets. (Xinhua/Wang Huifu)