Dear Hai Nam in future,
Can you tell me what the world in the future look like? Is it greener or more polluted? Do sciences from the world have new way to improve the environment ? Do doctors create the vaccine to against the Covic-19? What do you look like ? more tall or more fat? I hope the world will greener and doctors will win Covic-19.
Your best friend forever,
Hai Nam in present.
