In terms of efficiency and cleanness, buses, trains and other forms of public or masstransportation are superior to the private automobile.
在效率和清洁方面，公共汽车、火车和其他形式的公共或大众交通工具优于私家车。
2
As a result, American cities are now struggling to install energy-saving masstransportation in their dispersed, suburban layouts.
因此，美国正积极在分散的郊区规划中配置大量节能的公共交通运输系统。
3
Owning an automobile provides freedom of movement and the luxury of avoiding the limited schedules and cramped quarters offered by masstransportation options such as buses and subways.