The following dialogue is in NPCR 2, Lesson 23, listening exercise 7 in the exercise book, and my attempt in translating it.
I'm unsure about the sentence marked in red. I have not learned the pattern 比较+adjective until now but my Chinese friend told me that it's the comparative form of the adjective, so in this case "good"->"better".
But I can't make sense of this question. It's better compared to what? I also see a 走 (to walk), but in the next sentence they talk about trains and climbing. So how should I translate it?