You must specify which are the text fields that you want to run through text analysis (natural language processing).

您必须指定要在哪些文本字段上运行文本分析(自然语言处理)。

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This paper aims at exploring the stylistic features of radio English news through text analysis, which is based on systemic-functional grammar.

本文旨在运用系统功能语法理论，对广播英语新闻进行分析，揭示其文体特征。

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