抗紫外线纤维

What Makes Windshield Glass So Tough? We tend to think of glass as fragilebut in fact, glass is pretty strong stuff. A flawless fiber of glass pulled lengthwise is five times stronger than steel! Although glass is quite strong, its also very brittlea

发表于:2018-12-31 / 阅读(40) / 评论(0) 分类 英语听力文摘 English Digest

发表于:2019-01-03 / 阅读(47) / 评论(0) 分类 电信英语

RACHEL MARTIN, HOST: The Food and Drug Administration is set to decide soon on a matter that could help you rethink fiber. Yeah, we're talking about fiber. We're told to eat a whole lot more of it. It's good for us, right? But what exactly counts as

发表于:2019-01-16 / 阅读(58) / 评论(0) 分类 2017年NPR美国国家公共电台10月

Sunscreen 防晒霜 I need to apply some sunscreen every time I am going out in summer. 夏天我每次出去的时候,我都需要涂些防晒霜。 SPF 防晒系数 Sun Protection Factor An SPF of 30 means that you could be out in the sun 30 time

发表于:2019-01-17 / 阅读(23) / 评论(0) 分类 英语俚语天天说

Consider starch and fiber, both polysaccharides, both derived from plants, 拿淀粉和纤维来说,它们都是多糖,都是从植物中获得的, both composed of hundreds to thousands of monosaccharides joined together, 也都由成百上千个

发表于:2019-01-17 / 阅读(23) / 评论(0) 分类 TED演讲教育篇

Are bananas fattening? 吃香蕉会胖吗? Those who claim they are argue that bananas cause the body to make lots of insulin, and insulin causes fat growth. 那些声称香蕉使人发胖的人辩称香蕉促进人体分泌大量胰岛素,胰岛素

发表于:2019-02-01 / 阅读(105) / 评论(0) 分类 阅读空间