https://online2.tingclass.net/lesson/shi0529/10000/10090/nature15.mp3
https://image.tingclass.net/statics/js/2012
A: I think I stepped on a snail.
B: Did you feel something crunch under your shoes?
A: Yes. It feels disgusting.
B: Clean your shoes on the grass.
A: There are snails everywhere!
B: They like to eat the plants here.
A: Do they make holes in the leaves?
B: Yes, they make a lot of holes in the leaves.
A: If they were faster, maybe they could hunt for food.
B: What could they hunt? They have no teeth.
A: Neither does my grandma.
B: Your grandma is not a snail.