最迷惑人的20幅图画 Optical Illusions - the top 20
发布: 2008-12-25 14:00 | 作者: webmaster | 来源: 本站原创 | 查看: 1030次
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Focus on the dot in centre... 把注意力集中在中心的黑点，看会有什么发生
Focus your eyes on the dot in the centre of the circle and then move your head backwards and forwards. The outer wheels of the circle should begin to rotate in opposite directions.
