Article
熱水瓶的軟木塞有毛病 - There is something wrong with the soft wooden cork of the thermos flask
Subject matters: 新知 - new knowledge,
Language level: Wenyan
Keywords: health, disease, science, foreign news , Medicine,
Persons:
K. T. Meol (mentioned in article)
羅維達 Luo Weida (Author)