https://online2.tingclass.net/lesson/shi0529/10000/10090/nature16t.mp3
https://image.tingclass.net/statics/js/2012
A: I wish I were a bird.
B: I think being a cat would be better.
A: But birds can fly.
B: Well, cats can climb.
A: Birds fly higher than any cats can climb.
B: And yet, cats eat birds all the time.
A: That's only when the bird is sleeping.
B: You just don't want to admit cats are better.
A: I know why you want to be a cat.
B: Why do I want to be a cat?
A: Cats sleep all day, and so do you.
B: At least cats can sleep without being eaten.