According to Chomsky's TG Grammar,（）
to generate sentences, we start with deep structures and then transform them into surface structures
to generate sentences, we start with surface structures and then transform them into deep structures
deep structures are generated by transformational rules
surface structures are derived from their deep structures by phrase structure
根据乔姆斯基的TG语法理论，为了生成句子，我们从深层结构开始，然后将它们转换为表层结构。
