extensible metalanguage可延伸元语言;可扩元语言
semantic metalanguage语义元语言
extendible metalanguage翻译
metalanguage detail分析语言
metalanguage symbol元语言符号
vocabulary metalanguage词汇元语言
ML metalanguage元语言
defining metalanguage释义元语言
Syntactic metalanguage语法元语言;翻译;语法元语言英语
N-VAR（有变体名词） In linguistics, the words and expressions that people use to describe or refer to language can be called metalanguage. 元语言 [技术]