古代汉语中有“马之千里者”一类的语言表达形式 ,被归纳为“A· B者”结构。对这种结构 ,语法诸家看法很不一致 ,或视作同位结构 ,或视作定中结构 ,或视作中定结构。本文重新深入理解、分析前人的论著 ,并结合当代语言哲学研究新成果 ,试图阐明中定结构说的合理性 ,并对“者”的词性作了新的界定 Ancient Chinese has a “horse of the Trinidad and Tobago,” a class of language expression, was summarized as “A. B” structure. The views of such structures and grammars are very different, either as collateral structures, as central structures, or as medium structures. This article re-understanding, analysis of the previous works, combined with contemporary language philosophy to study new achievements, trying to clarify the rationality of the definite structure, and the “person” part of the new definition