It is even for an average family taking a longer trip than just a work commute, you really are going to have to have transportation fuel."

VOA: standard.2009.09.02

that your form of transportation is causing each day on your way to school or work.

不用担心你每天上学或上班的路上，你使用的交通工具会引起污染。

地铁的好处 - SpeakingMax英语口语达人