Speaking of bicycle, some people think ithas outdated in many big cities. However, some people think that it is stillpopular for them because people can exercise themselves by riding bicycle. Forme, I think people can get lots of benefits from riding bicycles.
說起自行車，很多人認為在很多的大城市，它已經過時了。但是，一些人認為自行車并不過時，他們可以通過騎自行車來鍛煉身體。就我看來，我認為騎自行車有很多好處。

First, we can become healthier by ridingbicycles. Since people are busy with works, they have almost no time to doexercise. But if they ride bike to work, then they can practice themselvesquite often. Consequently, they will be healthier.
第一，騎自行車可以讓我們更健康。很多人忙于工作，沒有時間去鍛煉自己。但是如果他們騎自行車上班的話，那么他們可以經常鍛煉自己。因此也會變得更加健康。

Secondly, bicycle is good for ourenvironment. In almost all big cities, the average temperature is a bit higherthan countryside for there are too many car emissions there. We all know thatpeople in big cities like to drive cars to go to work rather than taking publictransportations. Therefore, our environment is polluted by lots of emissions.If more people join in the trend to ride bicycles to work, then our air qualitywill be improved obviously.
第二，自行車很環保。在幾乎所有的大城市里，平均氣溫要比鄉村高，因為城市里有大量的尾氣排放到空氣中。我們知道，很多在大城市里工作的人都喜歡開車上班，而不是乘公共交通工具。因此，空氣會被大量的汽車尾氣污染。如果更多的人參與到騎單車去上班的大軍中來，那么我們的空氣質量也會有顯著改善。

In conclusion, riding bicycle not only can makeus healthier but also it is good for protecting ourenvironment. So, we should encourage more people to ride bicyclesquite often than driving cars.
總之，騎自行車不僅能讓我們更加健康，而且也有利于環境保護。我們應該鼓勵更多的人來騎單車，而不是開車。