高级英语对话 第 172 课：上网服务-3

A: I'd like to have internet on my computer.
B: Do you know what kind of internet you would like to get?
A: What are my options?
B: You can either get dial-up or DSL.
A: Which one would you recommend?
B: DSL is the best choice.
A: Why is DSL better?
B: It's a lot better because it doesn't tie up your phone line.
A: What exactly does that mean?
B: Well, with dial-up your internet is connected by your phone line.
A: That means that I can't use my phone and the internet at the same time, right?
B: That's right. You won't have that problem with DSL.