They also have great capacity.它们有很大的容量For example, this system in Guangzhou例如，这系统在广州is moving more passengers our direction比中国所有的地铁线路than all subway lines in China,能运送更多的乘客except for one line in Beijing,除了北京的一条地铁线at a fraction of the cost.且成本只是地铁的一小部分We fought not just for space for buses,我们不只是为巴士争取

Only 20 years later,仅仅20年后between 1920 and 1930,1920年至1930年间almost 200,000 people近 20万人were killed by cars in the United States.在美国死于车祸Only in 1925, almost 7,000 children在 1925年，近7000名儿童were killed by cars in the United States.在美国死于车祸So we could make different cities,所以我们可以创建不一样的城市cities that will g