What is the name of the voluntary activity of delivering water to sanitation workers in various communities in Jiangyang District, Luzhou City?

Guard the mother river and warm the two rivers. The New Era Civilization Practice Station of Jiangyang District, Luzhou City, the Natural Resources and Planning Bureau of Luzhou City, and the District Environmental Protection Bureau delivered water to sanitation workers in various communities, and jointly launched a Lei Feng-style activity called "Guarding the Mother River and Warming the Two Rivers" Volunteer service actions are heart-warming actions that effectively serve grassroots workers.