在世界各地,你经常可以看到这样的骑车者:他们将“拒绝石油”、“‘零排放’出行”、“保护地球,请推出你的自行车”等口号写在T恤衫上,以此呼吁人类社会减少对汽车和石油的依赖。从政府角度而言,鼓励更多的人骑自行车出行,可以缓解城市空气污染和交通堵塞。因此,各国 You can often see cyclists around the world: They write slogans such as “Refuse Oil”, “Zero Emissions”, “Protect Your Earth, Please Post Your Bicycle” T-shirts, thus urging human society to reduce its dependence on cars and oil. From a government perspective, encouraging more people to travel by bike can ease urban air pollution and traffic congestion. Therefore, all countries