The edges of shapes and forms also create lines .

平面图和立体图的边缘也构成线。

Since the pages fray along the edges .

因为信纸的边上已然磨损。

The jagged edges are enzymes .

那些锯齿的边缘都是酶。

Rounded edges also seem to enhance the illusion .

图案圆形的边缘也加强了这个幻觉。

The edges of the stripes are rough .

这些条带的边缘是粗糙的。