As time flies, the world has changed. It is quite common to see people walking and talking on cell phones all over the world. But in the last two or three decades it has been impossible. People can get bus information from electronic display boards at bus stops in major cities. They can also book Amtrak and airline tickets online. This is a new world. In other words, this word is called “Digital World”. Many people contact their friends through some social apps such as Facebook, Twitter, Wechat, QQ and LINE. In fact, many social app users are teenagers and young adults. Sometimes adolescents and young people born after 1980 (digital world) and who have had long access to technology, digital and the Internet, are called "digital natives". Some people thought the digital world was a bad thing. Another believed that digital things made life easier than before. In my opinion, I am a digital native and I like the new world, the digital world, because this world helps me to get an easier life. I also believe that the digital world is better than before. The world, literally, is full of people...