只用一本书提高英语听力能力!重温经典名著双语阅读小编推荐:跟着纪录片学英语不背单词和语法,轻松学英语
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[万花筒] 【整理】2013-02-14&02-17 如何洗手最干净?洗手液-肥皂杀菌效果大对决

提高英语听力能力 找对方法很重要!
In the season of flu and so many other germs, we were told again and again that hand sanitizers and soap are the best defense. Last year, Americans spent $170 million on hand sanitizers alone. So we wondered what works best and how do the sanitizers compare in a showdown with soap? Well, tonight our chief medical editor Dr. Richard Besser puts them to the test and gets some real answers.
In the season of flu and so many other germs, we were told again and again that hand sanitizers and soap are the best defense. Last year, Americans spent $170 million on hand sanitizers alone. So we wondered what works best and how do the sanitizers compare in a showdown with soap? Well, tonight our chief medical editor Dr. Richard Besser puts them to the test and gets some real answers.
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