Basically, he means that the order in which learners acquire syntactic rules is the same in both languages.

基本上，他的意思是学习者获得句法规则的顺序在两种语言中是相同的。

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Syntactic rules covering a required term order.

管理所需的词汇次序的语法规则。

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Grammatical sentences are formed following a set of syntactic rules.

句法是一个规则系统。

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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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Now, the syntactic rules are complicated.

语法规则是复杂的

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