Article
乳部的衛生 - breast care

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

Keywords: women health,

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Article
兩種小常識 - two small general knowledges

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

Keywords: general knowledge,

Notes:
橡皮物經久法
試雞蛋的生熟法

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