单词：electrolytic de-rusting
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It was all quite extraordinarily sloppy. 这种事于得真是马虎。 Most of the drums were exactly the sort you see rusting behind gas stations or standing outside factories, with no protective linings of any type. 大多数的桶就是我们堆放
万物简史
This is the VOA Special English Education Report. A high school student in Pennsylvania works on a math question Recently we asked how you feel about calculators in school. We heard from about thirty people in twelve countries, including a large num
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Warnings of Humanitarian Crisis in Greek Port Town Aid workers say the Greek economic crash is causing a humanitarian crisis in one impoverished suburb of the port city of Piraeus. Most of the residents of Perama are unemployed and many are unable to
VOA标准英语2012年(五月)
Lesson 4 Black-lead 第四课 黑铅 What is the black-lead in your pencil made of? If you take a bit of the metal which we call lead, you will find that it is grey in colour, very heavy, and not at all like the black-lead in your pencil. But the lea
英国学生科学读本
Here we go.So the Coretex has minimal damage. 开始吧。库特斯只有微小的损伤。 There is just some calcining around the edges. 边缘只有些灼烧的痕迹。 However,the Tempolite has significant damage and there's rusting around 300 d
影视剧中的职场美语
And over the next 18 months, they together passed an incredibly comprehensive set of reforms. 接下来的18个月，他们一起通过了一系列令人难以置信的全面的改革方案 They busted open Mexico's smothering monopolies. 他们破除了
TED演讲国际问题篇
And his fancy equipment did in fact come in very handy. For years, he and Madame Lavoisier occupied themselves with extremely exacting studies requiring the finest measurements. They determined, for instance, that a rusting object doesn't lose weight
万物简史
Lesson 13 THE METAL CALLED IRON 第十三课 一种叫铁的金属 Iron is the most useful of all metals. Hammers, nails, grates, horse-shoes, railings, bridges, and many other things are made of iron. 在所有金属里面, 铁是最有用的一种。
英国学生科学读本
PERAMA, Greece - Aid workers say the Greek economic crash is causing a humanitarian crisis in one impoverished suburb of the port city of Piraeus. Most of the residents of Perama are unemployed and many are unable to afford basic healthcare or provis
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We go to Scotland again today for our podcast. But first I must introduce you to an English expression to turn something into something else. What does turn into mean? The easiest way of explaining is to give you an example. Do you remember the fairy
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