It's a piece of language but it also belongs to other sorts of semiotic systems as we'll immediately see.

它是一种语言,它属于一个特殊的语义系统,下面我来解释一下。

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It has the function, in other words, of negating its own meaning in another semiotic system, in this case the semiotic system of the stoplight.

也就是说，他有这样那样的功能，在不同语义系统中表示的甚至完全相反，就像红灯表示的这些不同含义一样。

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