麻疹死疫苗

VOICE ONE: I'm Steve Ember. VOICE TWO: And I'm Barbara Klein with Explorations in VOA Special English. Today we tell about a large National Park established to protect the culture of ancient Native Americans. It is called Mesa Verde. (MUSIC) VOICE O

发表于:2018-11-27 / 阅读(481) / 评论(0) 分类 VOA慢速英语2008年(十二)月

STEVE EMBER: Im Steve Ember. BARBARA KLEIN: And Im Barbara Klein with EXPLORATIONS in VOA Special English. Today we tell about a large National Park established to protect the culture of ancient Native Americans. It is called Mesa Verde. (MUSIC) STEV

发表于:2018-12-07 / 阅读(90) / 评论(0) 分类 2011年VOA慢速英语(三)月

National Parks Called Americas Best Idea Welcome to This Is America in VOA Learning English. I'm Jim Tedder. And I'm Kelly Jean Kelly. This week on our program, we talk about national parks in the United States. The United States established its firs

发表于:2018-12-16 / 阅读(129) / 评论(0) 分类 2013年VOA慢速英语(七)月

AS IT IS 2016-06-20 Green Card Holder Deported Mickel Mesa, a 28-year-old legal permanent resident of the United States, had not seen his family in the Dominican Republic for many years. So, in December 2013, he and his sister flew to the Caribbean n

发表于:2018-12-16 / 阅读(114) / 评论(0) 分类 2016年VOA慢速英语(六)月

Millions More Children to Receive Vaccines More than one million children die each year from severe diarrhea and pneumococcal disease. Today (Tuesday), the GAVI Alliance announced an expanded campaign against the two leading killers of children world

发表于:2018-12-16 / 阅读(149) / 评论(0) 分类 VOA标准英语2011年(九月)

EXPLORATIONS - Mesa Verde National Park in Colorado: Protecting the Culture of Ancient Native AmericansBy Marilyn Christiano and Shelley Gollust Broadcast: Wednesday, May 24, 2006 (MUSIC) VOICE ONE: I

发表于:2019-01-02 / 阅读(110) / 评论(0) 分类 2006年慢速英语(五)月

Life was not easy when Emma Seguy first arrived in Mesa, Arizona. The 20-year-old was born in Paris, France. But when she was 16, she decided she wanted to be more independent and to try something new. So, Seguy asked her parents if she could complet

发表于:2019-01-03 / 阅读(135) / 评论(0) 分类 2018年VOA慢速英语(六)月

By Paula Wolfson Washington 25 December 2006 U.S. President George Bush heads to his Texas ranch Tuesday for a week-long holiday break. But as VOA's Paula Wolfson reports from Washington, it will be very much a working vacation. President Bush is ex

发表于:2019-01-08 / 阅读(161) / 评论(0) 分类 2006年VOA标准英语(十二月)

EXPLORATIONS - Mesa Verde National Park: Protecting the Culture of Ancient Native Americans STEVE EMBER: Im Steve Ember. BARBARA KLEIN: And Im Barbara Klein with EXPLORATIONS in VOA Special English. Today we tell about a large National Park establish

发表于:2019-01-12 / 阅读(116) / 评论(0) 分类 2012年VOA慢速英语(四)月

National Parks Called Americas Best Idea 今日美国美国国家公园 Welcome to This Is America in VOA Learning English. I'm Jim Tedder. And I'm Kelly Jean Kelly. This week on our program, we talk about national parks in the United States. The Uni

发表于:2019-01-12 / 阅读(117) / 评论(0) 分类 2013年VOA慢速英语(十)月

Mesa Verde National Park: Protecting an Ancient Culture 梅萨维德国家公园:古代北美洲土著人文化的保护地 EDITOR'S NOTE: This year, the U.S. National Park Service turns 100. Americans 28th President, Woodrow Wilson, formed the Natio

发表于:2019-01-12 / 阅读(93) / 评论(0) 分类 2016年VOA慢速英语(四)月

By Martin Secrest Washington, D.C. 18 April 2007 There may have been advances in the development of a vaccine to protect people against the H5N1 avian influenza virus, or bird flu. Researchers say it could be possible to substantially increase global

发表于:2019-01-12 / 阅读(179) / 评论(0) 分类 2007年VOA标准英语(四月)

If you could take a vaccine that would protect you against cancer, wouldn't you take it? Well, for cervical cancer, there is a vaccine. It protects against a virus called HPV, which can lead to cancer of the cervix. But a new study reports that many

发表于:2019-01-14 / 阅读(151) / 评论(0) 分类 VOA标准英语2010年(十一)月

US Scientists Expand Scope of HIV Vaccine Study The worlds largest ongoing HIV vaccine study has been expanded to consider multiple ways a vaccine might boost immune response to the AIDS virus. The U.S. Institute of Allergy and Infectious Diseases (N

发表于:2019-01-14 / 阅读(137) / 评论(0) 分类 VOA标准英语2011年(八月)

The answer lies in the effects of North Americas immense and fluctuating ice sheets. As they grew, they locked up so much water that the sea levels began to fall. The Bering Sea between Asia and North America began to drain away, leaving a bridge of

发表于:2019-01-23 / 阅读(100) / 评论(0) 分类 探索与发现2012年

But back then, they had serious competition from the giant short-faced bear. The short-faced bears bone chemistry reveals it was a carnivore and up to a ton, probably the largest meat-eating mammal that ever walked the earth. On its long legs, it ran

发表于:2019-01-23 / 阅读(121) / 评论(0) 分类 探索与发现2012年

Chapter Seven 第七章 The mesa was like a ship becalmed in a strait of lion-coloured dust. 崖顶螈像一艘静静旋泊在狮子黄的海湾边的船。 The channel wound between precipitous banks, and slanting from one wall to the other across t

发表于:2019-01-29 / 阅读(93) / 评论(0) 分类 美丽新世界

By Jessica Berman Washington 11 May 2006 French researchers at the Sanofi Pasteur Institute say they have developed a bird flu vaccine that, so far, appears to be safe and effective in humans. But obs

发表于:2019-02-04 / 阅读(187) / 评论(0) 分类 2006年VOA标准英语(五月)

Topics: Redshirting; Mesa Verde National Park; to wrap up; to bother versus to interrupt versus to disturb; blind spot Words: to redshirt to count toward kindergarten cutoff to hold back peer prevalence cliff dwelling outcropping cave artifact to wra

发表于:2019-02-15 / 阅读(81) / 评论(0) 分类 美语听力 English Cafe

I think there are a lot of reasons, but I first want to address the one that you're probably most likely to have heard of, 我觉得理由很多,但是我首先想要弄清一个概念,可能大家也都听过, because actually it's more danger

发表于:2019-03-16 / 阅读(290) / 评论(0) 分类 TED演讲科学篇
学英语单词
a tanning
activity-relationship chart
American Steel Sections
ami coding
angular position sensor
anthramycin
application for space
arangoes
artweeks
azophoska
believest
bolt clipper
canvas gear
carry-over factor
chorally
commonuser network
copra press pulp
culture makers
Digitaria mollicoma
diplectrona cuculata
double entry centrifugal compressor
dressmakes
dynes-sec-cm-5
electric gear shifting
entrete
evaluation of activities of daily living
fair-trade price
female contraceptive agent
ferricyanic
flat-deck car
flingy
foot-bridge
friction disc
gustatory nerves
guttations
hand capacity control valve
hawser laid
hemidiaphoresis
heptylenes
HerbigHaro object
hexanchuss
horizontal contour corrector
horsewomanship
HUMINT
ice thrust
in a perfect world
in competition with
Kangaroo Island
lash-likest
leakproof joint
lightning never strikes twice in the same place
limited access highway
lowffing
malformation by perversion
mesoperrhenate
microbiologies
morbid dysphoria
naevoid
nefandous
niggies
nitrogen transformation
normal text/codes for categorical observations
NTF-1
Obertsrot
oligopause
parametric surface fitting
parauterine lymph nodes
percentage risk
philipsbornite
plagiomnium rhynchophorum
plaster work
pnpn-diode
polymethylene bisdialkylphosphonate
posterior line axillary
problematicalities
property advance
rack stitch
radiative flux divergence
radium
readout register
resigned to
result length
retributivisms
rhizamorphoid
samiullah
savanna climate
semantic attribute
shabalkin
shadow government
skywatchers
snowy district
spinning axis
statistical accuracy
t-d chart
telemediated
temperature response
temporary storage aera
tenjin matsuri (japan)
Teulada, G.di
thalliform
track and hold amplifier
viscous similitude