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

发表于:2018-12-07 / 阅读(146) / 评论(0) 分类 (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

发表于:2019-01-02 / 阅读(180) / 评论(0) 分类 知性英语

By Jessica Berman Washington 23 October 2007 Researchers say that an extract made from broccoli sprouts may prevent skin cancer when applied directly to the skin. VOA's Jessica Berman reports scientists say broccoli contains a chemical that stimulate

发表于:2019-01-03 / 阅读(47) / 评论(0) 分类 2007年VOA常速英语(十月)

F Fangchinoline 防已诺林碱 Farrerol 杜鹃素 Fenugreek P.E 葫芦巴子提取物 Ferulic acid 阿魏酸 Feverfew P.E 小白菊提取物 Fibriuretinin 黄藤素 Flavanols 黄烷醇 Flavonoids 蒲公

发表于:2019-01-03 / 阅读(39) / 评论(0) 分类 医务英语

G Galanthamine 加兰他明 Gallotannin 五倍子鞣质 Ganodenna Lucidum P.E 灵芝提取物 Gardenoside 栀子甙 Garlic Extract 大蒜油 Garlic P.E 大蒜提取物 Gastrodin 天麻素 Geniposide 京

发表于:2019-01-03 / 阅读(49) / 评论(0) 分类 医务英语

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

发表于:2019-01-16 / 阅读(110) / 评论(0) 分类 VOA常速英语2007年(十一月)