A strict mathematical definition might imply that "yellow rabid dog" and "rabid yellow dog" are different arrangements of words but the same combination of words.
严格的数学定义可以说明“黄疯狗”和“疯黄狗”是不同的词语排列方式，但它们是同样的组合。
If you execute the same autocmd twice, you get two event handlers, both of which will be separately invoked by the same combination of event and filename from that point onward.
如果您两次执行相同的autocmd，您就可以获得两个事件处理器，这两个处理器将会由那一点上相同的事件和文件名组合分别激活。
After drawing both axes, you draw the gridlines along with their labels by evenly spacing them and then drawing the lines using the same combination of moveTo, lineTo, and stroke.
绘制水平和垂直轴线后，沿着它们的标签绘制网格线，方法是均匀间隔它们，然后使用相同的moveTo、lineTo和stroke组合来绘制这些直线。
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