单词：cell drop
单词：cell drop 相关文章
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
What are you going to do with that vase, Penny? Im going to put it on this table, Sam. Dont do that. Give it to me. What are you going to do with it? Im going to put it here, in front of the window. Be careful. Dont drop it! Dont put it there, Sam.
新概念英语第一册
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 identity [ ai5dentiti ] The police are
每日攻克5词
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
at the drop of a hat to talk through one's hat 今天我们要给大家介绍两个和
美国习惯用语
bomb To drop a bombshell 语言往往是难以捉摸，也是没有道理可讲的。我们刚才给大家介绍了Blockbuster。Blockbuster是指某件事，特别是文艺作品，取得很大成功。
美国习惯用语
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
2007年VOA标准英语（九月）
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
VOA标准英语2008年（五月）
在生活中我们常会在等待盼望一些事情的结果。无论是一场精彩的足球赛，还是一次重要的考试，或者是正在谈判中的一笔大生意，你都会提心吊胆地等待它们的结果。我想这种悬念心理大家
美国习惯用语
By Melinda Smith Washington 16 August 2007 In 2002, a national study of millions of American women showed that taking hormone replacement therapy during menopause increases the risk of breast cancer, blood clots and strokes. The news prompted many wo
2007年VOA标准英语（八月）
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）
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
英语新闻
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
By Jessica Berman Washington 19 December 2007 Stem cell research was the major medical and science story this past year, topping the list of achievements that experts say might finally lead to cures for many diseases. Meanwhile, global health officia
VOA常速英语2007年（十二月）
Every school day, about 7,000 students drop out of school(退学) in the United Stars. That's a total of 1.2 million students each year and only about 70 percent of entering high school freshman graduate each year. The problem is especially serious i
英语新闻
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
英语新闻