单词：high purity zinc
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By Brian Padden Washington 16 June 2008 The upcoming Olympic Games in Beijing will feature over 300 sporting events. While many events like swimming and basketball are dominated by professional athletes, the games still showcase amateur athletes. Th
VOA标准英语2008年（六月）
This is Scientific American's 60-Second Science. I'm Karen Hopkin, this'll just take a minute. On February 8th, we told you about scientists who had created a device worn over the knees that could harvest the energy you otherwise waste while walking.
Scientific American(二)月
Eat Nuts to Stay Healthy 吃坚果有助保持健康 From VOA Learning English, this is the Health Lifestyle report. People have long known that nuts are part of a healthy diet. However, scientists in the Netherlands recently found that you do not ne
2015年VOA慢速英语(七)月
Here are some facts about sweet potatoes you probably don't know: 这里有一些关于红薯你可能还不知道的事实： Sweet Potatoes Originated in the Americas 红薯起源于美洲 They're in the family of plants that includes morning glori
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Zinc supplements reduce the average cold by about a day and also make symptoms（症状） less severe, according to the latest findings. There's no cure for the common cold, but there's no shortage of ways to treat the symptoms. For a number of year
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歌学英语:来自孩子的质问:为什么！Tell Me Why 迪克兰加尔布雷斯（于1991年12月19日出生）的英国的歌手。一位堪称歌唱奇才的少年迪克兰加尔布雷斯，被英国媒体推崇为终生难得一见的歌唱奇才
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