And if you look at the century from 1950 to 2050, that's the century when we build all the world's cities, the century that we're in the middle of right now.
你如果纵览下从1950到2050的一百年， 这是个我们建设所有世界城市的一百年， 我们现在正处在这一百年的中间阶段。