why? It looks doable.

just look big bus as a tunnel or bridge. I don't mind driving a car under a tunnel.

所有跟帖： 

• 做一个移动的tunnel 容易吗？ 基本是不现实的东西。你看他两个扁扁的边。 -baydad- ♂ (96 bytes) () 10/30/2010 postreply 11:54:45

• 去看看大型车的轮胎要多大。 在那里一放还有什么地方可省的？ -baydad- ♂ (68 bytes) () 10/30/2010 postreply 11:58:15

• there is no tire or wheel. Did you watch the entire show? -worriedmom1- ♀ (0 bytes) () 10/30/2010 postreply 12:01:01

• 那它是怎么动的？ 那个电影是电脑编出来的。你想用什么就是什么。 -baydad- ♂ (0 bytes) () 10/30/2010 postreply 12:10:50

• electricity powered bus. It explained how the bus gets powered. -worriedmom1- ♀ (0 bytes) () 10/30/2010 postreply 12:15:54