and you don't see another train,

周围没别的车
but you see the landscape,

但你可以看到外面的风景
you see trees and cows and everything,

树木牛群以及别的东西
going at 200 miles an hour in the opposite direction,

在以两百英里的时速向后运动
you have some reason to believe that

你会有理由认为
probably the ground is not moving and you are moving.

也许地面没有动而是你在动
But that's just based on

但这个判断是基于
what I called earlier some sociological factors.

我之前提到的生活常识
In other words, it's completely possible to devise an experiment

也就是说完全有可能设计一个实验
in which somebody puts the whole landscape on wheels

其中整个大地被放在滑轮上
and when you go to sleep the landscapes,

而当你躺在其中时
cows and trees are made to move the opposite way.

牛群和树木被向后移动