Passengers enjoy a free ride on Metro Transit to celebrate Earth Day

今天是世界地球日，西雅图地区提供了当日免费乘坐King County的公交车的活动。当日无论何时，只要你在King County内，乘坐公交车一律免费。为的是让人们体会公交出行的好处，减少自驾车的污染。

To show how important public transportation is to improving health and air quality, King County Metro Transit offered free rides on all its buses on Sunday, April 22 to celebrate Earth Day.

不过这一天我哪儿也没去~~~~