but you looked at this train and it was not moving.

但你看着另一辆发现它静止不动
If you lift the blind and look through,

你拉开窗帘向对面看
you'll see the other train and there's another passenger

你看着那辆车那辆车上
in the other train and you look at each other,

也有一名乘客你们互相看着对方
you're not moving.

你们没有相对移动
When you wake up after this brief nap,

当你打了个盹醒来后
you find when you look outside the other train

发现对面的那辆车
is moving at 200 miles an hour.

正在以两百英里的时速运动
The question is,

问题是
"Can you tell if it's you who's responsible for this relative motion,

"你能够区分是你在运动
or maybe nothing happened to you and the other train

还是你没有动而对面的车
is moving the opposite way?"

向着相反的方向运动"