单词：natural killer cell
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086 natural disasters Words Tsunami earthquake volcano volcanic eruption avalanche landside Flood hurricane monsoon tornado drought cave-in medical supplies food aid famine tidal wave forest fire tremor lava blaze wind climate change destroy casualti
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87 natural resources words coal metal iron ore oil water precious metal diamond export import refine mine mining miner drill(ing) engineer supply infrastructure wood stone pure natural aluminium oil well phrases drill for oil explore for oil discover
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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
VOA2003（下）-环境与健康
East, they all ready participate in producing some of the most popular pain killer substances around, bear and wine. Now scientists analyze the east can also make some of the most powerful energizes. morphine.They work in the general natural chemical
2014年Scientific American(九)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 knowledgeable [ 5nClidVEbl ] He made s
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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
国家地理2008年
In Vitro - experiments which are carried out in a laboratory as distinct from in vivo experiments In Vivo -experiments which are carried out in live animals as distinct from in vitro experiments Immun
医务英语
Insulin - an endochrine hormone produced in the spleen which controls the amount of sugar in the blood by a) transporting it into cells and promoting glycolysis b) converting it into glycogen for stor
医务英语
The script of this programme 本节目台词 Face to face with dinosaurs at the Natural History Museum Sun Chen: Where are we? This place is like Jurassic Park. 这个地方，怎么那么像电影侏罗纪公园啊？ Neil: That's true. Welcome to On the Town from BBC Lea
都市掠影
1. Condolence s came from the White House Friday to the U. S. Forest Service following the deaths of four firefighters in a California wildfire. The spokesman for the President said in a phone convers
美联社新闻一分钟2006
Song：100% Natural Artist：Alsou Natural Oooh, yeah At the the centre of me, baby would you believe That I am everyything that I was born to be Why would I cover up What comes natural enough I have everything that god has given me I won't hide, who
英语热力歌曲
RACHEL MARTIN, HOST: Before Christopher Scott went to prison, he led a quiet life, spending as much time as possible with his sons. CHRISTOPHER SCOTT: In the place that I lived at, we had, like, a pond, so I used to take my two boys out and go feed t
2017年NPR美国国家公共电台11月
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
2007年VOA常速英语（十月）
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
VOA常速英语2008年（四月）
Finding could lead to more effective, longer-lasting pain treatment Faith Lapidus | Washington, DC 07 June 2010 Researchers are closer to unlocking the mysteries of acupuncture, learning more about why the ancient Chinese needle treatment eases pain.
VOA标准英语2010年(六)月
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
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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
趣味英语
What a life in the theater has taught me is, to trust one's instincts. And that takes courage. 语音讲解 单词发音 theater n.电影院，戏院，剧场；戏剧；手术室 instincts n.(生物)本能 courage n.勇气；胆量 连词发音 what
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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
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