Graphics with primitives such as lines or ovals and paths, and operations for transformation, scaling or rotation.

Ruby Shoes还支持通过线条、椭圆以及路径这些基本元素来创建图形，并支持变形、缩放、旋转这样的操作。

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Because of the rotation of the earth and the circulation of air currents, raindrops seldom fall in strictly perpendiclar lines.

由于地球自转与气流循环的关系，雨滴的路线很少是真正的垂直线。

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Because the accretion disk itself is believed to be magnetized, the rotation of the disk can twist the magnetic field lines into a helix.

为我们相信吸积盘本身是被磁化的，圆盘的旋转可将磁力线扭曲成螺旋线圈状。

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