“可达”常与数词或者数词结构连用,表示能够达到某一精确的程度。但在语言运用过程中,出现了“可达”与“左右”连用的情况,这是否是一种普遍性的表达?本文将通过对“可达”源流的探究,从语义和认知角度对“可达……左右”的形成过程说明,论证其存在的合理性。 “Reachable ” is often used in conjunction with a number or numeral structure to indicate that it can reach a certain degree of precision. However, in the process of language application, the situation that “reachable ” is connected with “left and right ” is a universal expression? This article will explore the origin of “reachable Semantic and cognitive perspective on the ”up to about" the formation of the process of demonstration, demonstration of its existence is reasonable.