...it is light. I am going to tie some helium(氦气) balloons...
I get the idea from the film up《飞屋环游记》.Look at the photo! Isn't it a cool home? Do you think it is a strange idea? It is a wooden house, so it is light. I am going to tie some helium(氦气) balloons to the house, so it can fly in the a...