Article
修理風琴法 - How to fix the organ

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

Keywords: housework,

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Article
揩玻璃窗法 - The way to clean the glass windows

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

Keywords: housework,

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