Hãy tóm tắt nội dung của đoạn đối thoại sau (bằng tiếng Anh) A holiday story Nam: Welcome back, Phuong! Brazil is amazing, isn't it? Phuong: It is, Nam, and it's very diverse! Nam: What do you mean? Phuong: The beaches in the south are so peaceful, while cities like Rio are overcrowded. Nam: What about the people? Phuong: In Rio, some people are wealthy, with high living standards. But there are also poor people who live in slums. Nam: Life must be difficult in the slums. Phuong: Yes, the slums are overcrowded, and crime is a major problem there. Nam: Crime affects everyone in the city, doesn't it? Phuong: It does, Nam. But there are probably other problems in the slums too, like disease, and poor healthcare, ... Nam: Wow, did you see that yourself? Phuong: No, visitors don't usually visit the slums. It's too dangerous. Nam: There are probably fewer things to see and to do in the slums, aren't there? Phuong: Yes. However, I love Brazil and I had a very good time there. Nam: Sure, it's a real experience, isn't it? Phuong: It is.