根据下图，请以“Three Ways of Communication”为题，写一篇100词左右的作文。请写出每一种方法 的好处
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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
