Think, for example, about the view from the window of a high-speed train. Objects on the horizon are clearer in our vision, whereas objects nearer the track are more blurred.

这就像是从高速列车往车窗外看，远处地平线的风景清晰可见，但窗前的物体却模糊一片。

youdao

Think, for example, about the view from the window of a high-speed train. Objects on the horizon are clearer in our vision, whereas objects nearer the track are more blurred.

这就像是从高速列车往车窗外看，远处地平线的风景清晰可见，但窗前的物体却模糊一片。

youdao