Article
預防電的危險 - precautions against the danger of electricity

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

Keywords: electric equipment, safety, general knowledge,

---

Article
日常清潔法 - Daily Wash

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

Keywords: hygiene, general knowledge,

---