[化] 转动筛分机

神奇校车带领孩子们进入浩瀚的科学领域,游梭于生物科学、地球科学、太空科学、气象学、古生物学等各门学科中。被纽约时报评为最新鲜有趣、最富有创意和想象力的科学启蒙方式。孩子

发表于:2018-12-06 / 阅读(457) / 评论(0) 分类 神奇校车系列丛书

EXPLORATIONS - Scientists Call for Quieter Ships to Protect Whales BARBARA KLEIN: Im Barbara Klein. STEVE EMBER: And Im Steve Ember with EXPLORATIONS in VOA Special English. Our subject today is whales. We discuss a report on the effect of noise from

发表于:2018-12-07 / 阅读(536) / 评论(0) 分类 2011年VOA慢速英语(六)月

STEVE EMBER: Welcome to THIS IS AMERICA in VOA Special English. I'm Steve Ember. BARBARA KLEIN: And I'm Barbara Klein. This week on our program, we look at what some companies are doing to help their employees get healthy and stay healthy. We also ta

发表于:2018-12-07 / 阅读(590) / 评论(0) 分类 2011年VOA慢速英语(二)月

今天我们给大家介绍两个以 smoke为主的常用语。首先我们要讲的是:To go up in smoke. 大家知道,smoke就是烟。To go up in smoke是指某项工程,或某个交易没有取

发表于:2018-12-16 / 阅读(649) / 评论(0) 分类 美国习惯用语

Galactic Rotation 银河系自转 Astronomers calculate there is ten times more matter in our Milky Way galaxy than we can actually see. Discover how the orbital motions of stars in the galaxy reveal dark matter -- on today's Earth and Sky. JB: I'm Joel

发表于:2019-01-02 / 阅读(738) / 评论(0) 分类 (科普英语)Earth and Sky

IN THE NEWS – September 28, 2002: IMF-World Bank Meetings Protest By Caty Weaver (VOA Photo - R. Daguillard) This is Steve Ember with the VOA Special English program, IN THE NEWS. The International

发表于:2019-01-02 / 阅读(467) / 评论(0) 分类 教育与新闻

我们是否生来就乐观有余而现实不足?Tali Sharot与我们分享的最新研究表明:人类的大脑更倾向于接受乐观的信息,而这样的特点既对人有益又十分危险。

发表于:2019-01-05 / 阅读(684) / 评论(0) 分类 TED公开课:头脑游戏

13 May 2002, 14:14 UTC AGRICULTURE REPORT – May 14, 2002: Wood Chips Protect Waterways By George Grow This is the VOA Special English AGRICULTURE REPORT. American scientists are developing ways to l

发表于:2019-01-07 / 阅读(555) / 评论(0) 分类 农业与发展

SCIENCE IN THE NEWS – July 16, 2002: Foods That Protect Against Disease VOICE ONE: This is Sarah Long. VOICE TWO: And this is Bob Doughty with Science in the News, a VOA Special English program abou

发表于:2019-01-08 / 阅读(554) / 评论(0) 分类 科技之光

Technology Report - A Mobile App in Delhi Aims to Protect Women 科技报道 - 一款保护女性安全的手机应用程序 This is the VOA Special English Technology Report. 这里是美国之音慢速英语科技报道。 More than twenty thousand

发表于:2019-01-12 / 阅读(678) / 评论(0) 分类 2012年VOA慢速英语(一)月

UN says Journalists Need Greater Protection Reporting, risky business American war correspondent, Marie Colvin and French photographer Remi Ochlik were killed in Syria on February 22. They are among 65 journalists killed in the first five months of 2

发表于:2019-01-13 / 阅读(511) / 评论(0) 分类 VOA标准英语2012年(七月)

US Neighborhood Watch Volunteers Help Protect Communities Baruti Jahi, a longtime Washington resident and father, knows he can't take his family's safety for granted. I'm up at four in the morning looking out my window because my dog is barking, and

发表于:2019-01-13 / 阅读(518) / 评论(0) 分类 VOA标准英语2012年(四月)

RotavirusImmunizationProtectsPeopleWhoDon'tGetVaccine Rotavirus causes severe diarrhea that kills more than a half-million people each year, mostly very young children. A recently-introduced vaccine has proved to be very effective and has shown some

发表于:2019-01-13 / 阅读(477) / 评论(0) 分类 VOA标准英语2011年(九月)

Indigestion Can Protect Africa's Lions African lions are increasingly hunting domestic cattle. And many of them are being killed as humans retaliate. Now, in Botswana, a pilot project is underway to save the lion by making cattle taste bad. The king

发表于:2019-01-13 / 阅读(567) / 评论(0) 分类 VOA标准英语2011年(九月)

Fighting Poverty, Protecting Women from HIV Financially empowering young women in poor countries may help protect them against sexually transmitted diseases. A new study shows that addressing poverty can help prevent risky behavior. Poverty, a lack o

发表于:2019-01-14 / 阅读(526) / 评论(0) 分类 VOA标准英语2012年(二月)

M23 Rebels Urged to Protect Civilians Humanitarian agencies in the eastern DRC are scrambling to locate displaced civilians and provide assistance following the M23 rebel groups takeover of Goma. For years, the town has been the center of aid operati

发表于:2019-01-14 / 阅读(567) / 评论(0) 分类 VOA标准英语2012年(十一月)

Cameroon, Chad Team Up to Protect Wildlife The pact was signed by both governments in early August. It stipulates that the Central African neighbors will jointly manage over 300,000 hectares of protected area. They will be patrolled by an increased n

发表于:2019-01-14 / 阅读(543) / 评论(0) 分类 VOA标准英语2011年(八月)

BEIJING, Oct. 12 (Xinhuanet) -- Children who spend hours each day watching television or playing computer games have more psychological(心理的) difficulties than those who don't, according to a study published in the US journal Pediatrics(小儿

发表于:2019-01-31 / 阅读(589) / 评论(0) 分类 英语新闻

今天我们要学的词是screen。 Screen, 有检查的意思。All women over 50 should be screened for breast cancer regularly, 凡是五十岁以上的妇女都要定期进行乳腺癌的检查。 美国全国铁路客运公司将首度开始对乘

发表于:2019-02-04 / 阅读(571) / 评论(0) 分类 英语每日一词

By Jeff Swicord Cheyenne, Wyoming 10 September 2007 Workers at adairy farm There is growing concern that farms and ranches in the western U.S. could become the target of agroterrorism. The devastating outbreaks of foot and mouth disease in Britain a

发表于:2019-02-05 / 阅读(666) / 评论(0) 分类 2007年VOA标准英语(九月)
学英语单词
'nuff
-fold
Adozon
amasked
ammonium chloroplatinate
ashmen
Ban Nong Siang Sa
bearing servo
benign recurrent nephrorrhagia
booleanised
call sth in
Champoleon
climatologically
co-oblige
consanguinity relationship
controlled direct current generator
cross hair cursor
cyclopentane tetracarboxylic acid dianhydride
demand message
devaluation of dollar in terms of gold
disbarking
dram funnel
drastic extraction
DVD VR
eleemosynate
elixated
employment by occupation
epigastric vein
erythromycin propionate lauryl sulfate
family Araucariaceae
flora imbalance enteritis
forbearings
gidday
goods insurance rate
grollmen
heavy cosmic-ray track
home-made car
hydroplutonic rock
intelligence machine
lambskin-it
land-saving
liminal
load-carrying structure
loading error
loan period
mahajan
marine sedimentology
mastice
metallic compound
microfuged
mirobalan
modified asphalt
moisture-proof board
multi-functional integrated circuit
multiple-stem budding
naomi
national wealth account
noncontractually
Novopetropavlovskoye
nuclear level density
offspring
omphalo-mesenterical vessel
orange-tree
Passa Tempo
PoEAA
political left
presidents
procedural mode
proxy gateway
pure top-down parsing
purification tank for liquid waste
raw stock
remote handling tongs
ribosido-benzimidazole
rough maching
s.o.n.n.y
schizos
shoulder-launched
slack ice
slatted moldboard plow
slug channel
snap ring plier
spinal mobility
Strongylus equinus
sukorwiecz
sweater teeth
tamil nadus
the world peace
TIMEDOUT
traffic-circulation map
Triangular debt
turnaround time
uneven mucosa
unforeseeable event
unpots
unwondering
upper lobe of left lung
USACFSC
vesicula proligera
viral strain
waybeam
wing shield