[医] 臭氧乙醚(乙醚、过氧化氢、醇合剂)

英语课程计划-the Preservation of the Ozone Layer

There is a special day to recognize the importance of the ozone layer. In 1995, the United Nations General Assembly decided September 16th is the International Day for the Preservation of the Ozone Layer. This is the date on which countries signed th

发表于:2018-12-29 / 阅读(433) / 评论(0)

英语课程学习计划和讲义

Earth and Sky:Global Warming and Ozone 全球变暖和臭氧

Global Warming and Ozone 全球变暖和臭氧 Could the coming century bring a new threat to the ozone layer? Discover one scientist's model of the effect of global warming and greenhouse gases on ozone -- on today's Earth and Sky. DB: This is Earth and S

发表于:2019-01-02 / 阅读(476) / 评论(0)

(科普英语)Earth and Sky

Using Cats to Explain Cryptocurrency and Blockchain

By now, most people have heard of bitcoin. Bitcoin is a virtual currency that has had a huge rise in value during 2017. Bitcoin however is just one of many cryptocurrencies. A cryptocurrency is a kind of money that does not exist in the form of bills

发表于:2019-01-03 / 阅读(394) / 评论(0)

2018年VOA慢速英语(一)月

Scientists: Ozone-Eating Chemical Mysteriously Rising

Scientists have found that levels of a now-banned chemical are rising again in Earths atmosphere. The chemical is called CFC-11. It is the second most common kind of CFC, short for chlorofluorocarbon. Chlorofluorocarbons were once widely used in many

发表于:2019-01-03 / 阅读(348) / 评论(0)

2018年VOA慢速英语(五)月

War on the roads

Alice: Hello and welcome to 6 Minute English from BBC Learning English: well be talking about a story in the news and learning some vocabulary along the way. Im Alice and joining me today is Rob. Hi Rob. Rob: Hi there Alice. Alice: Now, Rob are you a

发表于:2019-01-07 / 阅读(359) / 评论(0)

六分钟英语

Better Together 我们一起,日子会更好

英文歌词: There's no combination of words I could put on the back of a postcard No song that I could sing But I can try for your heart, our dreams, and they are made out of real things like a shoebox of photographs with sepia-toned loving Love is th

发表于:2019-01-10 / 阅读(423) / 评论(0)

音乐咖啡厅

英文摇滚歌曲：Amberian Dawn - Kokko Eagle Of Fire

Fire has left V?in??l?'s heart stones Light has gone Dark nights no light under the sky Hard to find the fire-child Eagle of fire with fiery feathers Made a spark Ukko made the Kokko's spark Kindle as a fire [Chorus:] Fly into the night bring back th

发表于:2019-01-10 / 阅读(359) / 评论(0)

英文摇滚歌曲

Study: Loss of Ozone Slows

By Caty Weaver Broadcast: September 12, 2003 This is Bob Doughty with the VOA Special English Environment Report. Scientists in the United States have reported some good news about the 1)ozone in the

发表于:2019-01-11 / 阅读(418) / 评论(0)

VOA2003（下）-环境与健康

VOA慢速英语2013 词汇典故：行动起来

Words and Their Stories: Get Your Act Together 词汇典故：行动起来 I'm Susan Clark with the Special English program WORDS AND THEIR STORIES. 现在是美国之音慢速英语词汇典故节目，我是苏珊克拉克。 A woman from Japan was

发表于:2019-01-12 / 阅读(357) / 评论(0)

2013年VOA慢速英语(三)月

VOA慢速英语2011--Words and Their Stories: Get Your Act Together

发表于:2019-01-12 / 阅读(332) / 评论(0)

2011年VOA慢速英语(十一)月

Top 5 Crowdfunding Projects Ever

Top 5 Crowdfunding Projects Ever A great idea is never enough. You need money to turn your idea into a reality. Your family and friends may give you money for your idea. But you are going to need more people to invest, unless you have very rich frien

发表于:2019-01-12 / 阅读(416) / 评论(0)

2015年VOA慢速英语(十)月

TED演讲:区块链对货币和商业的影响(5)

And then -- this is the key part -- that block is linked to the previous block 随后是关键的部分，该区块连接到前一个区块， and the previous block to create a chain of blocks. 以及更前面的区块，形成了一连串的区块。

发表于:2019-01-18 / 阅读(305) / 评论(0)

TED演讲商业篇

第557期:纠结英音和美音? 最好先知道这些单词英美发音的不同

英音和美音，原来这么多单词听起来都不一样！英式英语和美式英语，在很多方面都有所不同，包括在细微的语法使用，单词的拼写以及单词的发音上都有一些区别。今天我们主要分享一些常

发表于:2019-01-18 / 阅读(371) / 评论(0)

卡卡课堂早餐英语

纯正英语一分钟-ozone layer

I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea

发表于:2019-01-21 / 阅读(378) / 评论(0)

纯正英语一分钟

【一起听英语】马路上的战争

马路上的车越来越多，在车多的马路上，自行车道甚至会被挤占，这是真的吗？ Alice: Hello and welcome to 6 Minute English from BBC Learning English: well be talking about a story in the news and learning some vocabulary a

发表于:2019-01-23 / 阅读(440) / 评论(0)

一起听英语

万物简史第163期:爱因斯坦的宇宙(6)

If you needed to illustrate the idea of nineteenth-century America as a land of opportunity, you could hardly improve on the life of Albert Michelson. 如果你需要说明19世纪的美国是个机会之乡的理念，那么你很难再找到像阿尔

发表于:2019-01-29 / 阅读(335) / 评论(0)

万物简史

万物简史第162期:爱因斯坦的宇宙(5)

What Michelson and Morley did, without actually intending to, was undermine a longstanding belief in something called the luminiferous ether, 迈克尔逊和莫雷所做的实际上是在无意之中所做的破坏了长期以来人们对一种所谓光

发表于:2019-01-29 / 阅读(361) / 评论(0)

万物简史

(1)Springtime Ozone Loss

25 大气层中臭氧正日渐稀薄 DATE=3-21-01 TITLE=SCIENCE REPORT - (1)Springtime Ozone Loss BYLINE=George Grow (Start at 1'00

发表于:2019-01-30 / 阅读(581) / 评论(0)

科技之光

【英音模仿秀】活靶射击

模仿文本： And a British doctor says there isevidence that snipers in another part of the country are using civilians fortarget practice. David Noether is a consultant general surgeon in the UK for the National Health Service. He's just returne

发表于:2019-02-23 / 阅读(357) / 评论(0)

英音模仿秀

经济学人:加密货币新兴货币(2)

Even before worries surfaced that the currency could split in two over the disagreement, 甚至在货币可能分裂成两种的担忧显露出来之前， bitcoin holders started to diversify into some of the many other crypto-currencies, or alt. co

发表于:2019-02-25 / 阅读(393) / 评论(0)

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学英语单词

.45 calibrest

absolute space

aleydigism

applied selling and administrative expense

arc-over voltage

auditing bodies

belief in the group's own morality

blister cooler

bohrium

candidiopotamon rathbunae

cimifugol