精选优质文档-倾情为你奉上3.Whats your opinion on mobike or ofo?(共享单车) 现象 好处 坏处例子 产生原因 预防措施Nowadays, sharing bikes has become an increasingly popular way to travel. And it brings us a series of benefits in life. First of all, the advent of sharing bikes can reduce the number of private cars and ensure the smooth flow of traffic. Secondly, its a green travel which greatly reduces the pollution of the environment by cars. Whats more, by cycling we can explore every corner of the city, and ha
