And it might look like it keeps line straight, but that's just because I'm only showing the horizontal and vertical gridlines.

它可能看起来是直线 但那只是因为我只展示水平和垂直网格线。

But I showed last time how we can think about them visually as smashing around space in such a way that gridlines stay parallel and evenly spaced, and so that the origin remains fixed.

上节课我讲过如何从视觉上把它们看成是在空间中粉碎网格线保持平行且间隔均匀 因此原点保持固定。