WORD is a unit of expression that has universal intuitive recognition by native-speaker, whether it is expressed in spoken or written form.

词是一个表达单位，无论其是以口头语或书面语的形式出现，都能获得本族语言者的普遍直觉识别。

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The form of expression of the classroom teaching language of Chinese is divided into teaching spoken language, figure language, written language.

语文课堂教学语言的表现形式分为教学口语、体态语、书面语。

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Language, is a concrete expression of the form of written symbols is a nation in order to record the history of this nation and to facilitate communication with others, invented a tool.

语言，是文字符号的具体表现形式，是一个民族为了记录本民族的历史和方便与他人交流所发明的一种工具。

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