keep staring at the black dot.after a while the gray haze around _英语解答

keep staring at the black dot.after a while the gray haze around it will appear to shrink

人气：413 ℃　时间：2020-05-08 12:15:59

解答

注视着黑点部分,一会之后,你就会发现,它周围的灰色部分就会缩小.
你应该是在观察一个视觉变化图片吧?