求翻译：对语言的选择要和语言产生的环境结合起来，与语言的文化语境和情景语境结合起来，从而产生适合语言环境和交际目的的语言，通过三个元功能即概念功能、人际功能、语篇功能提供意义潜势。是什么意思？

The choice of language and language of the environmental combined with language and cultural context and situational context combine to produce the language environment for the purpose of language and communication, through three neuronal function that is the concept of function, interpersonal funct

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Must the environment which produces with the language unify to the language choice, unifies with the language cultural linguistic environment and the scene linguistic environment, thus produces suits the language environment and the human relations goal language, through three elementary works can b

Environment on the choice of language and language together, combined with the cultural context and situational context of language, thereby creating a suitable locale language and communication purposes, through three functional concept that textual function function, interpersonal function, provid

The environment that the choice about language wants and the language produces is combined together, combine with culture context and scene context of the language together, thus produce suitable for language environment and communication purpose language, offer meaning potential through three yuans