在旅行时私家车能提供舒适感，因为它们不像公交车那样拥挤。
Private cars give comfort while traveling for they are not as crowded as public buses.
它也为人们在城市的短途旅行提供了更好的选择，特别是在人们找不到公交车或地铁可以乘坐的时候。
It also offers people a better choice for short journey in cities, especially when people can't find a bus or the underground to take.
不过，由于街道宽阔、人口密集，以及有乘坐公交旅行的传统，波哥大具有使快速公交成功的各种要素。
But with its wide streets, dense population and a tradition of bus travel, Bogota had the ingredients for success.
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