求翻译：语言输入质量是语言输出的重要保证，通过各种措施增强语言输入的可理解性和示范性并创造条件促进学生的语言输出是语言教师的首要任务。是什么意思？

Language input, the output quality is an important guarantee for the language through a variety of measures to enhance the intelligibility of language input and model and create conditions to promote students' language output is the primary task of language teachers.

language input output quality is an important guarantee of the language, through a variety of measures to improve the comprehensibility of language input and model and create conditions that promote students' language output is the primary task language teachers.

The language input quality is the language output important guarantee, and creates the condition through each measure enhancement language input intelligibility and demonstrativeness to promote student's language output is the language teacher's most important task.

Language input quality is the guarantee of language output, through a variety of measures to improve intelligibility and model of the language input and output creates conditions to enhance students ' language is a language teacher's top priority.

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