听力原文:M: Where is Jimmy? Why hasn't he come down for breakfast? Needn't he go to school today? W: He's still in bed in his room. M: What's the matter with our dear son? W: He's feeling terrible. I think he must have caught a bad cold. M: Well, we must call the doctor. W: Yes. Can you remember the doctor's telephone number'? M: Yes. It's 7546 2811. what is the relationship between the two speakers?