The syntax analyzer has one recursive procedure for each nonterminal U.

对于每非终结符号U，语法分析程序都有递归过程。

That sounds like fiddle-faddle double-talk, but I don't know any less recursive way to say it.

这听起来似乎很无聊，不知所云。但是，我不知道不太绕口说法。

The recursiveness of phrase structure rules：These rules can generate an indefinite number of sentences,and sentences with infinite length,due to their recursive properties.

由于它们具有循环特征，可以生成无数长度无限句 http 16555.soupay. 子来。