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    I'm on a bus on a rainy day. It's time to go home. A woman with a dog gets on the bus. It is a big dog and its feet are not clean. I don't want the dog to sit near me. But the woman says to the conductor (售票员) , "Oh, I pay for(付款)my dog.  Can he sit here like the other people?" The conductor looks at the dog and says, "Yes, madam. But like the other people, he must not put his feet on the chair. "