你的眼睛一旦贴着桌子边缘看它，你就会发现它不再呈现出一个图形的样子，从外观上来看，它变成了一条直线。
As soon as you look at it with your eye on the edge on the table, you will find that it ceases to appear to you a figure, and that it becomes in appearance a straight line.
你的眼睛一旦贴着桌子边缘看它，你就会发现它不再呈现出一个图形的样子，从外观上来看，它变成了一条直线。
As soon as you look at it with your eye on the edge on the table, you will find that it ceases to appear to you a figure, and that it becomes in appearance a straight line.
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