Tradition Not to Be Sneezed at

• 作者: 晓英
• 来源期刊: 语言教育
• 学科: 教育
• 关键词: tannic SPRAYING CUSTOM ALLERGIC floor benefits EAVES pollen WORRY Proteins
• 年，卷（期）: 1992,（10）
• 页码范围: 42-
• 页数: 1页
• 分类号: G6

摘要

<正> Scientists believe the British custom of throwing tealeaves on the floor before sweeping, to keep downdust, could have bad other health benefits. Tea leaves contain tannic acid and this chemical isknown to reduce the effects of allergens--proteinsin the air which give us allergic reactions, such as runnyeyes, wheezing and coughing. Scientists recently discovered that spraying tannic acid