Fuel Cell Cost-Cutting

By Caty Weaver Broadcast: July 25, 2003 This is Bill White with the VOA Special English Environment Report. Researchers say they have found a way to reduce the cost of some 1)fuel cell production. The

医疗服务英语 un02_13

[00:05.15]第十三部分 化验取样 [00:10.29]1.The first test is no problem, [00:12.92]做第一项检查没有问题, [00:15.54]but the second one has to be done on an empty stomach. [00:33.78]但第二项目得空腹做. [00:52.01]2.How long do I have to fast? [01:01.04]

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剧码： Office Talk 麻烦您写e-mail给他好吗？ 同事不在的原因 有人打电话找同事，但不巧这个人不在，你可以告诉对方： He's not here. 他不在。 若是对方询问你的同事为何不在，你可以说： John

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剧码： Office Talk 汤姆出差去 Joe: Good afternoon. I'd like to speak with Tom Smith. Helen: I'm afraid he's away from his desk at the moment. Joe: Do you know when he will be back? Helen: He's away on a business trip. He won't be back until s

【电影预告片填空】美国狙击手

I've got a military-aged male on his cell phone _______1_______, over. If you think he's reporting troop movement, you have a green light. Your call, over. Maybe he's just calling his old lady. He ___2____. Hold on. I got a woman and a kid, 200 yards

国家地理-2008-05-24 Fuel Cell 聚焦燃料电池

For something that could revolutionize the world, its come along very slowly. The fuel cell was invented in 1839, but there was little development until the 1950s when NASA started to use them in space where they are still used today. Now, after yea

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After hundreds of years, the most common, basic microscopes still operate by means of the same old hardware: the lens. But what if you could do away with that lens and create a microscope that fits on a cell phone? Thats what researchers led by Aydog

SSS 2010-06-02

After hundreds of years, the most common, basic microscopes still operate by means of the same old hardware: the lens. But what if you could do away with that lens and create a microscope that fits on a cell phone? Thats what researchers led by Aydog

SSS 2011-10-07

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

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By Carol Pearson Washington 25 September 2007 A lot of people wonder about the impact cell phones might have on their health. And now a new study shows that heavy mobile, or cell, phone use may result in hearing loss. VOA's Carol Pearson reports. As

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By Bill Rodgers Washington 19 May 2008 Cell phones are an example of what is sometimes now called leapfrog technology, a product that allows developing nations the benefits of a reliable and extensive communications network without the heavy investme

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VOA常速英语2007-Conference Says Stem Cell Research is Robust

By Victoria Cavaliere New York 16 October 2007 An annual stem cell research conference in New York has been bringing together some of the field's top scientists to discuss breakthroughs in stem cell research and what proponents call its long-term app

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By Paul Sisco Washington 17 April 2008 Federal regulators in Washington have approved plans to upgrade the nation's Emergency Alert System to include text messages to cellphones and other mobile devices. VOA's Paul Sisco has more in this Searching fo

Researchers make sperm from stem cell in dish

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

Turn Off Your Cell Phone 关掉你的手机

Turn Off Your Cell Phone 关掉你的手机 We went to the movie the other night. I sat in an aisle seat as I usually do, because it feels a little roomier. Just as the feature was about to start, a blonde from the center of the row got up and starte

英语笑话听力+文本：Turn Off Your Cell Phone 关掉你的手机

We went to the movie the other night. I sat in an aisle seat as I usually do, because it feels a little roomier. Just as the feature was about to start, a blonde from the center of the row got up and started walking her way out. Excuse me, sorry, oop

U.S. researchers discover human lung stem cell

WASHINGTON, May 11 (Xinhua) -- Researchers at Brigham and Women 's Hospital (BWH), a teaching affiliate of Harvard Medical School, have identified(鉴定) a human lung stem cell that is self-renewing and capable of forming and integrating multiple bi

ESL Podcast 190 – Taking a Phone Message

I was looking forward to a quiet evening at home. As soon as I walked in the door, though, the phone rang. Paolo: Hello. Evelyn: Hi, could I speak to Tony? Paolo: Hes not here right now. Can I take a message? Evelyn: Do you know when hell be back? Pa

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Hello. This is Ichiro Aoki of X company. 喂，你好。我是X公司的青木一郎。 Extension 4274, please. 请转4274。 Could I speak to Mr.Smith? 请问史密斯先生在吗？ Id like to make an appointment to see Mr.Jones. 我想约琼斯先生