Four-hour direct Guangxi Hezhou started the through train of vegetables for Hong Kong. The transportation time of vegetables supplied to Hong Kong in Hezhou City has been shortened from the original 6 hours to less than 4 hours. The straight-through mode omits the intermediate passing and handling links, which can save more than 1000,<> yuan (RMB, the same below) of transportation costs per car. The city has taken advantage of its location and ecology to build a high-quality production base for the "vegetable basket" of the Guangdong-Hong Kong-Macao Greater Bay Area.