口语对话：
 
Jack: Did you see the goldfish in the park?
杰克：你们在公园里看到金鱼了吗？
Billy: I see. Why did the fish jump out of the water?
比利：我看到了，为什么金鱼要跳出水面呢？
Bob: Are they playing?
鲍勃：是不是它们在玩耍？
Tina: No, I know why goldfish jump out of the water.
蒂娜：不是的，我知道为什么金鱼要跳出水面。
Jack: Why?
杰克：为什么呢？
Tina: Goldfish jump out to breathe, because the water inside the hypoxia.
蒂娜：金鱼跳出来是为了呼吸，因为水里面缺氧。
Bob: When will the water inside the hypoxia it?
鲍勃：什么时候水里面会缺氧呢？
Tina: Rainy day, or Oxygen in water is the least in the morning.
蒂娜：下雨天，或者早上水里的氧气最少。