听力原文:W: Congratulations, Mr. Wang. M: Thanks. W: I hear that you do a lot of sports. Are you a professional marathoner? M: No, I'm an amateur. But I am a sports fan and exercise every day. W: Your performance is very good for an amateur. How hard do you have to train for a marathon? M: I try to train for 3 hours every day. W: How many sports do you do as pastimes? M: Quite a few. W: And what are they? M: Jogging, swimming, cycling, Taiji, soccer, martial arts and some others. W: Why do you like swimming? M: Because it is good for the back and it is relaxing. W: And cycling? What's cycling good for? M: The legs. I like it because it's not expensive and I think it's relaxing. W: You also do Taiji. M: Yes, that's fight. Taiji is good for breathing. It's very relaxing. W: But jogging isn't very relaxing, is it? M: No, it isn't. But it is good for losing weight and it's very good for the heart. W: And soccer? M: Yes, I like soccer as a team sport. It's fun, fast and sometimes is very exciting. W: You also do martial arts? M: Yes, it's fun and exciting. I like it a lot. What is the relationship between the two persons?