Look, what's that on the railway tracks, David?
看,铁轨上的是什么,大卫?
A rock? A man?
是块石头?还是一个人?
Oh, it’s a tree trunk.
哦,是一根树干。
Gosh! A train is coming soon!
天啊!火车就快来了!
It’s going to hit it!
火车会撞上它的!
Let’s move it away.
我们把它搬走。
There's no time for that.
没时间搬了。
We must stop the train.
我们必须让火车停下来。
Let’s wave at it.
我们向火车招手吧。
But we always wave at trains coming by.
但是每次火车经过,我们都会招手啊。
And the drivers are used to our waving.
火车司机对我们的招手已经习以为常了。
We must wave something red.
我们必须摇一些红色的东西。
Red is for danger.
红色代表危险。
Good idea. Your T-shirt is red. Take it off!
好主意。你的T恤是红色的。把它脱下来!
Sure.
没问题。