in the tail of a small three wheel trailer, with the flag on one side, "I go to Tibet, your bike to work", propagandist the idea of low carbon travel. Liu Chengyi said that riding this time is only for environmental protection.
"when I was working in Yantai, I only had ten minutes to ride to work, but some of my colleagues still had to drive." Liu Chengyi believes that his colleagues are very fuel consuming and environmentally friendly, and he usually goes to work by bike, so he wants to contribute to environmental protection.