And one of the puzzles of syntactic rules, or one of the issues of them, is that different rules can conspire to create the same sentence.

语法规则的一个谜团或问题是,不同规则可以共同作用来产生同一个句子

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Think of this as a function that takes two techs arguments, the first of which is univs and the second of which is techs. And this is just a different syntax for writing that function call.

想下有两个参数的函数,第一个是univs第二个是,这就是对于函数调用的,不同语法的书写规则。

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