TED演讲 :石油真正的代价(2)

And I think particularly now, 我认为尤其是目前 as we see ourselves in a time of environmental crisis, 我们明白人类身处环境危机时代 we can learn so much from these people 我们可从这些族群身上学到许多东西 who have

美国科学60秒 SSS 2013-07-16

This is Scientific America 60-Second Science, I'm Santy Criber. This will just take a minute. It's boating season, which means it'll soon be time for the annoying ritual, scraping of the barnacles.They lache on tide and don't let go, barnacles can be

【一起听英语】节后综合征

放完长假回来，你是否会适应上班生活呢？很多人都会出现节后综合征，还要处理那么多的邮件，真让人感觉到烦躁..... Michelle: Hello and welcome to 6 Minute English from BBC Learning English. I'm Michelle. Ne

【美国总统电台演说】2006-06-17

THE PRESIDENT: Good morning. Earlier this week, I traveled to Baghdad to visit the capital of a free and democratic Iraq. It was an incredible feeling to stand in the cockpit of Air Force One and watch the pilot steer us in toward Baghdad. After we

VOA标准英语2008年-Brainy Teens the World Over Descend on Atlanta

By Mike Cooper atlanta 15 May 2008 Some of the world's most gifted teenagers are gathering in Atlanta to participate in Intel's International Science and Engineering Fair. Their projects range from transmitting invisible data to extracting fuel from

TED演讲:石油真正的代价(3)

And I think particularly now, as we see ourselves in a time of environmental crisis, 我认为尤其是目前，我们明白人类身处环境危机时代， we can learn so much from these people who have lived so sustainably in this ecosystem for o

科学美国人60秒 SSS 2016-1-1

Every winter some twenty million tons of salt are dumped on America's road.That sodium chloride melts the ice, so it prevents its formatin, helping to prevent accidents. But road salt has its downside. This is not very economical because salt is main

美国科学60秒 SSS 2013-07-15

It's boating season, which means it'll soon be time for that annoying ritual, the scraping of the barnacle. They latch on tight and don't let go. Barnacles can be a major pain. As they grow they build up calcium deposits under a boat's paint. And the

英语听力：自然百科 麦哲伦企鹅

If you are a Magellanic penguin, this ten-mile stretch of Argentine beach is where the action is--a place to scout about a new partner(物色新伴侣), conduct a courtship and settle down to raise the youngsters. National Geographic Grantee Dee Berg

经济学人: 回收:塑料公路 (3)

Cleaning and sorting plastic made out of multiple polymers can be relatively expensive, 清理和将多种聚合物制成的塑料进行分类的成本相对昂贵， especially if it is used to make low value products such as packaging. 尤其是这些

经济学人: 回收:塑料公路 (2)

If all goes well, the inventors hope to develop the idea and make the sections entirely from recycled plastic. 如果一切顺利，那么投资者希望开发此想法并完全利用回收垃圾制造这些节段。 Paths, car parks and railway plat

经济学人: 回收:塑料公路 (1)

Of all the plastic produced since the 1950s, less than 10% has been recycled. 20世纪50年代以来，产生的所有塑料中，只有不到10%得到回收。 The vast majority ends up being dumped, most of it in landfill. 其中大部分都成了垃

pbs高端访谈:石油管道破裂致20多户居民撤离

JUDY WOODRUFF:Next: how an oil spill near Little Rock, Ark., is casting a shadow over the proposed expansion of the Keystone pipeline. MAN:So that is a pipeline that has busted and has flooded the neighborhood. JUDY WOODRUFF:A local resident describe

魔都教师团成英国数学教育救世主！

Lilianjie Lu stands in a London classroom, struggling slightly with her English but with a winning smile on her face, as she attempts to teach them all about fractions. Lilianjie Lu站在伦敦的教室里，说着不熟练的英语，但脸上挂着信

经济学人455:旧轮胎建成新式道路可减少噪音污染

Science and technology. 科技。 Quieter traffic. 更安静的交通。 When the rubber hits the road. 当橡胶遇上公路。 Turning old tyres into new roads can help cut noise pollution. 把旧轮胎建成新式道路可以减少噪音污染。

VOA标准英语2009年-Junior Achievement Inspires Future Bus

Faiza Elmasry | Washington, DC 03 December 2009 Junior Achievement brings business people to classrooms to share their experiences with students Junior Achievement is celebrating its 90th anniversary this year. The non-profit, which educates and insp

经济学人234:更安静的交通 当橡胶遇上公路

Science and technology 科学技术 Quieter traffic 更安静的交通 When the rubber hits the road 当橡胶遇上公路 Turning old tyres into new roads can help cut noise pollution 把旧轮胎建成新式道路可以减少噪音污染 AROUND one

经济学人:物联网 智能家居让你无力抗拒(上)

Business: The internet of things: Where the smart is 商业：物联网：智能家居，路在何方 Connected homes will take longer to materialise than expected. 真正实现互联家庭仍是长路漫漫。 The fanfare has gone on for years. 有关

经济学人:六大经济思想之五:纳什均衡(下)

As he struggled with ill health, however, his equilibrium became more and more central to the discipline. 然而，就在他与病痛搏斗时，他的均衡之于这门学科变得越来越核心了。 The share of economics papers citing the Nash e

经济学人:外汇交易:放规矩点!(2)

It is also designed to reflect current market practice, with clear guidelines on communication between participants and on trade-execution practices 它还旨在反映当前市场实践，在参与者之间的沟通和交易执行操作上有明确的指