How Americans travel美国人通常是如何出行的呢?他们的乘车付费方式和我们有哪些不同呢?让我们来了解一下吧!In the U.S.A., if people only need to travel a short distance, the quickest way in most cities is walking. During working hours (between about 9:00 a.m. and 5:00 p.m., from Monday to Friday), the traffic is very heavy on most city streets. So many people prefer to walk.However, it is the bus that people often take to go from place to place in the city. Passengers must have the exact change in ..