交通的未来是电动的，我们全力以赴。

The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all. And that, of course, causes great confusion.

了解穷人的真实生活是设计有效政策帮助他们第一步。

那只是我的一小步，却是人类的一大步。