translation.en: And one of the things we were looking at is -- if you can't read and write, if you want to communicate over distances, you need to be able to identify the person that you want to communicate with.
translation.zh: 引起我们注意的是 如果你不会读或写 但是你想通过距离来进行交流 你必须具有能力识别 那个与你做交流的人