grammaticality

The grammatical meaning of a sentence refers to its grammaticality, that is its grammatical well-formedness.

句子语法意义指是它语法性，即语法合法性。

Constituents that can be substituted for one another without loss of grammaticality belong to the same syntactic category.

可相互替而又不改变语法属性成分属于同一句法类型。