prescriptive grammar

prescriptive-grammar的词性：
n.（名词）

1. A grammar that attempts to establish norms or rules for correct usage and to characterize incorrect usage, as opposed to a grammar that simply describes how a language is used.
规定主义语法：试图建立正确语法使用的规范或规定，并标出不正确用法的语法，与那种单纯描述如何使用语言的语法相对