Well Formed

合式的

A term used in linguistics, especially in generative grammar, to refer to the grammaticality (well-formedness) of a sentence. A sentence is well formed if it can be generated by the rules of a grammar; it is ill formed if it cannot be. The term applies equally to syntax, semantics and phonology.

语言学特别是生成语法用来指句子的合语法性（“合式性”）。一个句子如果能由一部语法的规则生成就是合式的；如果不能就是不合式的。这一术语对句法学、语义学和音系学同样适用。