单词：speed amplification
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Splendid! He kept his telescopic cameras carefully aimedglued to their moving objective; 精彩片他小心地调着望远摄影机的镜头，盯紧了那移动着的对象。 clapped on a higher power to get a close-up of the frantic and distorted
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EXPLORATIONS - The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can
2013年VOA慢速英语(二)月
BBC News with Julia Candler. A senior member of North Koreas government has warned that his country would react with a pre-emptive nuclear strike if it saw signs that the US was preparing to launch an attack. Speaking to the BBC, the Vice Foreign Min
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This is Scientific American's 60s Science. I'm Karen Hopkin. This will just take a minute. Think about the tools used by biologists, perhaps test tubes and microscopes come to mind. But what about diapers? No, it's not the investigators in their work
2015年Scientific American(一)月
说一口流利的英语，从简单的单词开始。 听听，读读，背背，今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 fine [ fain ] This flat's fine for two people. adj. 舒适的 这套公寓适合两个人
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Eat slowly, chew your food thoroughly, eat with a fork. These table manners dont apply in the world of competitive eating, or sometimes called speed eating. The goal here--eat as much as you can in a short period of time. Ladies and gentlemen, so it
国家地理2007年
迈克尔.杰克逊：Speed demon I'm Headed For The Border 我驶向边境 It's On My Mind 这就是我的心境 And Nothin' Really Matters 没有什么大不了的事情 I've Got To Be On Time 得准时到达才行 Look In The View Mirror 看看后视
迈克尔杰克逊经典歌曲
In my lab, we recently made a cancer nanodetector 在我的实验室，我们最近研制出了一种癌症纳米检测器， that is so small that it could travel into the body and look for tumors. 小到可以进入全身血液循环并寻找肿瘤。
TED演讲科学篇
PCRthe polymerase chain reactionis a crucial tool. The DNA amplification technique is used in genome sequencing, forensics and the diagnosis of various diseases. To give researchers more genetic material to work with, a PCR instrument repeatedly heat
Scientific American(十)月
This is Scientific American 60 Second Science, I am Karen Hopkin, this will just take a minute. Every year, about 10 million tons of paper winds up in American landfills and incinerators, which is not only wasteful but adds CO2 to the atmosphere. Rec
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This is All Things Considered. I am Melissa Block. And I am Robert Siegel. India is changing fast, but it's still a fundamentally conservative society. Most marriages are arranged, western-style dating is unthinkable for most, which is why it's surpr
2005年NPR美国国家公共电台
The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can go from the sci
2013年VOA慢速英语(五)月
EXPLORATIONS - The Laser: Futuristic Science Found at Your Local Store MARIO RITTER: Welcome to EXPLORATIONS in VOA Special English.Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one
2012年VOA慢速英语(一)月
'Word on Street' Impacted Language in 2011 While 2011 is over, some of the words that came to define the past year are still very much with us, and may be for years to come. Since 2011 was an especially busy year for grassroots political action, many
VOA标准英语2012年(一月)
Because of course, the ear is, I mean, subject to all sorts of things. 这当然是因为，我是说，耳朵受制于很多因素。 The room we happen to be in, the amplification, the quality of the instrument,the type of sticks...etc., etc. 我们现
TED演讲国际问题篇
Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can go from the science of the future to eve
英语语言学习
By Paul Sisco Washington 14 November 2007 At the McDonald Observatory in western Texas, a unique space program has been quietly underway for more than 30 years. It is called the Lunar Laser Ranging Program. VOA's Paul Sisco has more. Research scienti
VOA常速英语2007年（十一月）
Nobel in Physics for Controlling Laser Light 诺贝尔物理学奖颁给激光控制实验者 The main practical application of CPA so far has been in the eye surgery. It was the first one, and I think it is the one that is used by the most people fo
2018年科学美国人10月
The Revolution in American Higher Education To produce the upheaval in the United States that changed and modernized the domain of higher education from the mid 1860's to the mid 1880's, three primary causes interacted. The emergence of a half dozen
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Wall Street analysts searching for reasons for the U.S. stock market's sharp swings in early August point to high unemployment, the European debt crisis and other basic economic problems. But some also suspect what is known as high-frequency trading,
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