Article
衛生規程 - The hygiene regulations

Column title: 常識 - Common Knowledge
Subject matters: 新知 - new knowledge,
Language level: Mixed

Keywords: hygiene,

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Article
製藍黑墨水法 - How to make dark blue ink

Column title: 常識 - Common Knowledge
Subject matters: 文章 - essay, 新知 - new knowledge,
Language level: Baihua

Keywords: chemistry, general knowledge,

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Article
耳的保護 - The protection of ears

Column title: 常識 - Common Knowledge
Subject matters: 新知 - new knowledge,
Language level: Mixed

Keywords: health, general knowledge,

Persons:
君朋 Junpeng (Author)

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Image
[No caption] -

Medium: Line drawing

Function: Unrelated to Article/Ad