They all look very different. But this language allows us to say that they are representations of the same symmetrical abstract object, which we call 4-4-2. Nothing to do with football, but because of the fact that there are two places where you can rotate by a quarter of a turn, and one by half a turn.
它们都看起来都非常不一样。但是，这种语言让我们可以说 它们是相同的对称的抽象物体， 我们称之为4-4-2。这与足球毫无关系， 而是因为他们都有两个你可以旋转 四分之一圈和二分之一圈的地方。