i like going to school by like, because i think i can keep healthy by riding. bicycles are still popular in beijing. some foreigners buy bicycles to ride. but more and more people buy cars because they think they are faster than bicycles. in fact the exhaust gas from cars makes the air dirty and they waste energy.i think bicycles are better than cars.

　　bicycles are still popular in beijing. it's convenient to go to school or go to work by bike. it can help people to keep healthy.but more and more people buy cars because they think they are faster than bicycles. the exhaust gas from cars pollutes the air and they waste energy. i prefer riding bicycles because it is cheap and keeps the air clean.

　　英语作文译文：

　　自行车在北京依然很流行，骑车上学或上班很方便，它能帮助人们保持健康。但是越来越多的人买汽车，因为他们认为汽车比自行车快。汽车的尾气污染了空气，浪费了能源。我喜欢骑车因为它便宜并且不会污染空气。

　　我喜欢骑自行车上学，因为我可以通过骑车保持健康。北京依然流行自行车，一些外国人也买自行车骑。但是越来越多的人买汽车，因为他们认为汽车比自行车快。事实上，汽车尾气污染了空气，浪费能源。我认为自行车比汽车好。