三种通讯方式对比(Three Kinds of Communication)
As we all know, communication has been playing an important part in people's life. As far as I know there are many kinds of communication, among them mail, telephone and computer are most commonly used.
Writing letters is one of them. People use it to exchange information, ideas and thoughts. Slow as the mail is, it is the cheapest means of communication. The second kind is the telephone. By using telephone, people can hear each other even if they are far away. With the development of modern science and technology,the computer has come into being. Communication with computers is fast and easy. In this way, people can send E-mail to each other.
In a word, mail, telephone and computer all help to bring people all over the world closer.