话剧区别于其他剧种的特点是通过大量的舞台对话展现剧情、塑造人物和表达主题的。其中有人物独白，有观众对话，在特定的时、空内完成戏剧内容。
Susan很苗条，Cathy很胖，她们是好朋友，不过却都羡慕对方……
This story is about two good friends Cathy and Susan. Cathy is a very thin girl; on the other hand, Susan is a very heavy girl. Therefore Cathy and Susan want to change themselves.
Scene I
(Cathy and Susan encounter each other on a street.)
Cathy: Hello, Susan. How are you?
Susan: I’m not doing well.
Cathy: Why not?
Susan: I’m too fat. I want to lose some weights.
Cathy: Really? But I want to become fat.
Susan: Are you crazy? Being fat is a terrible thing. Look at me. My abdomen looks like a swimming belt. It is so ugly.
(Cathy touches Susan’s abdomen.)
Cathy: But it is tender and makes me feel content.
Susan: You’re so kind. Your words make me happy.
Cathy: I’m serious, no kidding.
Susan: God! (Touches her own forehead and sigh)
Why are you not me and I am not you?
(Susan seems to intend doing something.)
Susan: We don’t like our figures and want to change ourselves, we can work hard together.
Cathy: It sounds good. I can help you and you can help me. That’s wonderful. (Saying loudly)
Susan: We begin planning right away.
Cathy: Uh! Let’s go.
Scene II
(Firstly Cathy brings Susan to a famous store named Trust me.)
Servant: Welcome! Do you want to take part in our class?
Cathy: Yes! We will.
Servant: Ok!
Susan: Why do you take me here?
Cathy: I see that “Trust me, you can make it” commercial on TV. It looks great. So I want to trust it and help you become thinner.
Susan: Oh…! Why do you also particular in?
Cathy: Because we are good friends, we should do it together. (Ha! Ha!)
(After several days)
Susan: Why? It’s no use to me, but you become much thinner. (Crying)
Cathy: I don’t want it, too. (Crying)
(The two girls are very angry to look the servant.)
Servant: It’s not my fault. (She escapes from the store.)