translation.en: But because of what Snow did, because of this map, because of the whole series of reforms that happened in the wake of this map, we now take for granted that cities have 10 million people, cities like this one are in fact sustainable things.
translation.zh: 但是，因为斯洛所做的，因为这张地图， 因为所有这一系列的革命 发生在这个地图背后的， 我们现在认为拥有100万的城市很理所当然。 像这样的城市实际上是持续发展的。