They're a great source of English input as the language is often written in a simple, spoken style.

它们是英文输入的一个很好的资源，因为语言往往是以很简单的、口语风格写的。

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Is a kind of speech between spoken and written language among the style.

演讲稿是一种介乎于口语和书面语言之间的文体。

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Style is the spoken language expression characteristic synthesis which stably gets down in the long-term use process.

语体是语言在长期使用过程中所稳固下来的言语表达特点的综合。

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