Article
粗肥皂用法 - How to Use a Laundry Soap

Column title: 電影 - Film
Subject matters: 新知 - new knowledge,
Language level: Baihua

Keywords: general knowledge,

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Article
目與齒之衛生 - Healthcare for Eyes and Teeth

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

Keywords: general knowledge,

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