With the development of science and technology ,means of transportation is better than before.But the problems of pullution is more serious so I prefer going somewhere by bike.Because it is environment-friendly .It can not only reduce the mission of the carbon dioxide but it can save energy ,which is not endless on the earth.I think this means of transportation can also benefit our health ,which can make our city cleaner .
In my opinion, we should consider the environment before choosing the means of transportation because we are living on the only earth.We should try to make our planet a better place to live in.
