translation.en: And even in a city like New York City, one of the most densely populated in the world and one of the most sophisticated mass transit systems in the world, there are still 2.5 million cars that go over those bridges every day.
translation.zh: 但是即使是像纽约这样的城市， 这样一个在全世界拥有 最密集的人口和最复杂的 公共交通的城市， 每天仍有250万辆车要经过那些桥。