What do you want to be when you grow up, John?约翰，你长大后想成为什么？I want to be an astronaut, Mum.妈妈，我想成为一名宇航员。It's great. Why do you want to be an astronaut?好棒啊。你为什么想成为宇航员呢？Because I think it must be interesting to watch the earth from space. My hero is Jing Haipeng.因为我觉得从太空里看地球的话一定会很有趣。景海鹏是我的英雄。You have to be strong and healthy if you want to be an astronaut.如果你想成为一名宇航员，你必须要变得健康、强壮。You're right, Mum. So I do sports every day to be stronger and I also know I need to study hard to make my dream come true.你说得对，妈妈。所以我每天都做运动来让自己变得更强壮，我还知道要通过努力学习来实现自己的梦想。