音标:[prəʊˈdʒenɪtə sel] ;
[医]祖细胞

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(143) / 评论(0) 分类 VOA2003(下)-环境与健康

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(69) / 评论(0) 分类 万花筒2011年

1. genre /ʒɑ:r/ -- kind; sort; category Allan Poe was the originator of a genre of detective story. 爱伦坡是一类侦探小说的创始者。 2. progenitor /prəʊˈdʒenɪtə/ -- ancestor to whom a gruop traces its birth; forefather The Bible

发表于:2018-12-30 / 阅读(60) / 评论(0) 分类 突破英文词汇

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(119) / 评论(0) 分类 国家地理2008年

In 1888, Blavatsky wrote a book called the Secret Doctrine, in which she attempted to establish the principles of Theosophy or God Wisdom that the cosmic masters had impart ed to her. Blavatsky cited

发表于:2019-01-02 / 阅读(98) / 评论(0) 分类 遗失的大陆

One of the goals of regenerative medicine is to make tissue to replace our own damaged body parts. Thats still a ways off. But starting with mouse embryonic stem cells, researchers have succeeded in creating heart muscle that actually beats. The stud

发表于:2019-01-08 / 阅读(97) / 评论(0) 分类 Scientific American(十)月

Researchers Repair Brain Injuries With New Cells 研究人员培育新脑细胞治疗大脑损伤 A group of researchers at Rice University in Texas are learning how to help the brain heal from serious injuries. Brain cells, called neurons, connect w

发表于:2019-01-12 / 阅读(65) / 评论(0) 分类 2016年VOA慢速英语(四)月

研究或发现寨卡病毒与小头畸形症存在联系 This is the laboratory at Johns Hopkins'Institute for Cell Engineering in Baltimore, where scientists work around the clock for a month to find out how the Zika virus affects brain cells. 这是

发表于:2019-01-14 / 阅读(67) / 评论(0) 分类 VOA标准英语2016年(三月)

-If you look carefully, you can see there are stone artifacts. This black marterial here is a burnt material. So that's an ancient fireplace.-So that would have been for cooking. -For cooking the shellfish and so on. We find animal bones, etc, in her

发表于:2019-01-22 / 阅读(46) / 评论(0) 分类 自然百科2012年

Bloody hell, so the fynboses becomes finely manicured grass, about the nature, Id like to introduce you to the leisure industry. Pinnacle point is perhaps the most ambitious development on the stretch of the garden route. Up to 850 properties are pla

发表于:2019-01-22 / 阅读(81) / 评论(0) 分类 自然百科2012年

Beating Heart Tissue from Stem Cells In a study in the journal Science, researchers explain how they used mouse embryonic stem cells and microchip technology to create heart muscle tissue that actually beats. Cynthia Graber reports One of the goals o

发表于:2019-01-30 / 阅读(125) / 评论(0) 分类 60秒科学

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(100) / 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(100) / 评论(0) 分类 VOA常速英语2008年(四月)

WASHINGTON, Nov. 11 (Xinhua) -- The U.S. Food and Drug Administration (FDA) on Friday approved HEMACORD, the first licensed hematopoietic progenitor cells-cord cell therapy. HEMACORD is indicated for use in hematopoietic stem cell transplantation pro

发表于:2019-02-03 / 阅读(156) / 评论(0) 分类 英语新闻

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(221) / 评论(0) 分类 英语新闻

DURING its rise in the 17th century, Amsterdam was animportant haven for religious dissidents. It was also the publishing centre forthe racyphilosophical tracts that were too hot to be printed in France or England. The citys economicfortunes were bor

发表于:2019-02-05 / 阅读(110) / 评论(0) 分类 趣味英语

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(206) / 评论(0) 分类 趣味英语

WASHINGTON, April 16 (Xinhua) -- Researchers at the University of Colorado (CU) have found that lack of a specific gene interrupts neural tube closure, a condition that can cause death or paralysis. The study was the cover story this week in the jour

发表于:2019-02-18 / 阅读(93) / 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(159) / 评论(0) 分类 英语新闻

Oxford 牛津 Dreaming cranes 梦中的吊车 It is the biggest construction boom since the Middle Ages 这是中世纪以来最大的建造活动 IN HIS book Notes from a Small Island, Bill Bryson, an American author, took exception to some of Oxfor

发表于:2019-02-24 / 阅读(80) / 评论(0) 分类 经济学人文艺系列
学英语单词
ALCF
anagenic
ancohumas
attame
Balingian
be hard to cultivate
Birtwistle
calciovolborthites
Celerina
ceruloplasma
columellate
communications sink
comprehensive road maintaining vehicle
concentrated fall
copy recipient
curtain walls
cut matrix
cyberservice
cystocarcinoma
diethylamino
differential pressure pick-up
eastern jackrabbits
el-islam
engineering company
Entomopoxvirinae
eulogizers
final exchange line
fishing quay
fly ash
full section
good credit risk
hammarskjld
hand casta
heart lines
horse-corsing
huffaker
in perpetuity
independent particle model
industrial cities
insulation quality
intel 815 chip
international geographical union (igu)
laminated iron core
landing craft tank
lanx
lgs
Listera bambusetorum
lophophore
low pressure
lubras
Malta
Merced National Wildlife Refuge
Mesembryanthemum
mesenteriomesocolic ligaments
misrepresents
Montenay
myxopod
narrow-leaved strap fern
ofdaw
onerous act
outer cylinder
outflow channels
paratrigeminal
penley
Peucedanum rubricaule
philosophical necessity
piloting district
pinatas
plastic corpuscle
polyhydroxyurethanes
preotic myotome
pulse code modulation system
reduced cubic equation
regeneration of striated muscle
relative size of the public sector in grossdomestic product
Rhizoctonia crocorum
rigid dynamics
ring oiling
sedimentary supply
semiformed
separation cocycle
similarity index
sir charles
slip out from someone's hand
sneezing reflex
solidified resin
spirtual
steel trowel finish
straighten ... out
symmetrical body
tellez
TGSE
the Pacification Guards
Thelxinoe
Tres Lagos
tricing pendant
understrappers
us k
vampish
vector bundle
vowel sound
wild bred