音标:[sel lɔs] ;
[医]细胞消亡

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

发表于:2018-12-01 / 阅读(400) / 评论(0) 分类 VOA2003(下)-环境与健康

Fish live in water, but do they drink it? The answer is yes, but how fish drink water depends on where they live. Water gets into a fish's body through osmosis, the process in which water diffuses from a higher to a lower concentration. For example,

发表于:2018-12-03 / 阅读(306) / 评论(0) 分类 初学者听力文摘精选

Bald made a comeback years ago. Some men even shaving their heads before hair departed on its own, but many others say they would give anything to regrow their loss. Now doctors say a big breakthrough could make that possible. This is definitely a st

发表于:2018-12-24 / 阅读(234) / 评论(0) 分类 万花筒2011年

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

发表于:2018-12-30 / 阅读(328) / 评论(0) 分类 国家地理2008年

I'm at a loss for words,用来表达不知说什么好,无话可说,哑口无言。 例句: I'm at a loss for words , How dare you accuse me of stealing . 我真不知道该说什么好,你怎么会怀疑是我偷窃呢。 This is the most

发表于:2019-01-08 / 阅读(343) / 评论(0) 分类 美国俚语

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

发表于:2019-01-11 / 阅读(333) / 评论(0) 分类 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

发表于:2019-01-13 / 阅读(299) / 评论(0) 分类 VOA标准英语2008年(五月)

Fish live in water, but do they drink it? The answer is yes, but how fish drink water depends on where they live. Water gets into a fish's body through osmosis, the process in which water diffuses from a higher to a lower concentration. For example,

发表于:2019-01-26 / 阅读(254) / 评论(0) 分类 英语听力文摘 English Digest

25 大气层中臭氧正日渐稀薄 DATE=3-21-01 TITLE=SCIENCE REPORT - (1)Springtime Ozone Loss BYLINE=George Grow (Start at 1'00

发表于:2019-01-30 / 阅读(544) / 评论(0) 分类 科技之光

HEALTH REPORT - Lung Cancer: Tobacco Is Usually the Cause, but Not Always By Cynthia Kirk Broadcast: Wednesday, August 17, 2005 I'm Shep O'Neal with the VOA Special English Health Report. Last week, a

发表于:2019-01-30 / 阅读(328) / 评论(0) 分类 健康与经济

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

发表于:2019-01-31 / 阅读(320) / 评论(0) 分类 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

发表于:2019-01-31 / 阅读(307) / 评论(0) 分类 VOA常速英语2008年(四月)

今天我们要学的词是downside。Downside是指某件事情不利的方面。One of the downsides of being a celebrity is the loss of privacy. 做名人的代价之一是,你的隐私会受到损伤。The downside of working from home is being

发表于:2019-02-03 / 阅读(228) / 评论(0) 分类 英语单词荟萃

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

发表于:2019-02-04 / 阅读(504) / 评论(0) 分类 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

发表于:2019-02-07 / 阅读(397) / 评论(0) 分类 趣味英语

Want motivation on weight loss? Dont rely on your willpower! Controversial advice I know, but there is psychological proof for it, so please bear with me and Ill explain. Most advice youll hear about how to get motivated and keep motivated when losin

发表于:2019-02-13 / 阅读(346) / 评论(0) 分类 阅读空间

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

发表于:2019-02-17 / 阅读(358) / 评论(0) 分类 VOA常速英语2007年(十二月)

WASHINGTON, Nov. 14 (Xinhua) -- Nearly a fifth of all Americans 12 years or older have hearing loss so severe that it may make communication difficult, according to a new study led by Johns Hopkins University researchers and published Monday in the A

发表于:2019-02-18 / 阅读(280) / 评论(0) 分类 英语新闻

The largest U.S. bank, JPMorgan Chase, says it lost $5.8 billion in bad trades this year, nearly triple its original estimate. The Wall Street investment bank said two months ago it estimated that losses originating in its London trading office would

发表于:2019-02-18 / 阅读(340) / 评论(0) 分类 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

发表于:2019-02-18 / 阅读(398) / 评论(0) 分类 英语新闻
学英语单词
aerodynamic size
Almadén de la Plata
aloul
Anaun, Gora
annie
arrestable offender
balancing selection
bang goes sth
bankrupt's assets
be in arrears with tax payment
beware of fire
big-five
bristol glass
brush-shifting motor
cakeage
caliculate
cardifs
Chadwell Heath
chekenone
chrome-bearing alloy
class play
colour television outside broadcast vehicle
cryo-tube
debye-scherrer technique
detache
distant thermometer
doublegeared
drive control power amplifier
dukkah
econometric work
English vocabulary level test
epurate
Erigeron allochrous
extra warp
fanger
feed forked connection hinge screw nut
finalized system of data retrieval
fling oneself upon someone's on the mercy of someone
fluttering about
goldwells
gradable
heavy-looking
helobios
incorrect flame
Ingersoll, Robert Green
jack oil
Kannonkoski
knocker screen
knottiness
labor persuation court
lapiere
Losuia
lovedrugs
low-order tiller
manukyan
methonium
minimum phase system
mitriform calyptra
molossa's
Nervus alveolaris inferior
nitrite liquor
non-transposing instrument
nondeforming
pancake inductor
parallel vector
perishable commodity
phenylnitramine
physical biochemistry
predisponency
QRV
Rajauri
recollect oneself
refined tastes
renewal of licensed patents
rice bran powder
rotational disorder
Saipāl
series submerged arc welding
sit-downer
slowbacks
Soaker, Mt.
soil respiration
ssac
ST_size-and-quantity_things-remaining
stator cascade loss
stenays
Strobilanthes biocullata
suppression device
surface isomerization
Tafel slope
tetradecyl mercaptan
to go out with
torsion of appendix
transient heel
Unipolarina
universal trim
valve stem gauge
West Carrollton
whooplas
wire insulating compound
yellow firers
zygomycosis