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Acid Rain 酸雨 Damage from acid rain is widespread - not just in eastern North America, but throughout Europe, Japan, China, and Southeast Asia. Is the rain that's falling on your umbrella acidic? A listener's question -- on today's Earth and Sky. J
(科普英语)Earth and Sky
How does acid deposition affect human health? We eat food, drink water, and breathe air that has come in contact with acid deposition. Canadian and U.S. studies indicate that there is a link between t
知性英语
E Ecdysterone 脱皮甾酮（蜕皮激素） Echinacea Purpurea Herb P.E 紫锥菊提取物 Echinocystic acid 刺囊酸 Ecliptasaponin A 旱莲甙A Ecliptasaponin B 旱莲甙B Eduardine 午贝甲素 E
医务英语
Araloside A 楤木皂甙 A Arbutin 熊果甙 Arctigenin 牛蒡甙元 Arctiin 牛蒡子甙 Arctinal 牛蒡子醛 Arctinol b 牛蒡子醇-b Aristolactone 马兜铃内酯 Aristolochic acid A, D 马兜铃酸
医务英语
AS IT IS 2016-02-13 Work Soothes Pain of Acid Attacks In India A caf in India is hiring women who once stayed in hiding after being attacked with acid. One woman, Dolly Kumari, says she stayed inside for two years after a man threw acid on her. He wa
2016年VOA慢速英语(二)月
By Birungi Machrine Kampala 26 November 2007 Attacks using acid are becoming more frequent in Uganda. Up to 2003, there were only 145 recorded attacks, but over the last three years, there have already been 87. Survivors often suffer from severe emot
VOA常速英语2007年（十一月）