音标:[,kwɔdri'pɔlimә] ;
四元共聚物

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Are your car bumpers riddled with scars from encounters with tight parking spaces? Did the furniture movers scratch your floor? Wouldn't it be great if t

发表于:2018-12-24 / 阅读(279) / 评论(0) 分类 Scientific American(四)月

This is Scientific American's 60-Second Science. Im Cynthia Graber. This will just take a minute. Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because

发表于:2018-12-24 / 阅读(321) / 评论(0) 分类 Scientific American(三)月

Most of us blink without thinking. But people whove sustained strokes or combat injuries can lose their ability to blink. Which is important for lubricating and cleaning the eye. Surgery is an optiona small piece of muscle transplanted from the leg c

发表于:2018-12-24 / 阅读(261) / 评论(0) 分类 Scientific American(一)月

Good morning. Oh, what a day. What a lovely day. Its a pleasure to be addressing the Wake Forest graduating Class of 2015. I want to start by thanking the administration and the Trustees for inviting me to speak. I want to thank them for giving me an

发表于:2018-12-28 / 阅读(280) / 评论(0) 分类 英语语言学习

Lowering the Ceiling on Roof Energy Losses Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because traditional black asphalt roofs heat up in summer and s

发表于:2019-01-02 / 阅读(297) / 评论(0) 分类 60秒科学

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?. [Spray sound.] Killing bugs? No. [Spray sound.] Deodorizing the bathroom? No. [Spray sound.] Checking for explosives, yes. Because chemists at the University of Califor

发表于:2019-01-08 / 阅读(385) / 评论(0) 分类 Scientific American(九)月

Patients undergoing coronary bypass surgery need implants of new, healthy blood vessels. So do those who receive repeated hemodialysis due to kidney failure. The best option is to use the patient's own veins or arteries, but thousands of patients don

发表于:2019-01-08 / 阅读(280) / 评论(0) 分类 Scientific American(二)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Solar cells convert sunlight to electricity. But they don't take advantage of all that solar heat, thereby missing out on the majority of the solar ene

发表于:2019-01-08 / 阅读(355) / 评论(0) 分类 Scientific American(四)月

Research Breakthrough for Biodegradable Tires? 研究人员研发完全可降解轮胎 Researchers say they have created a new synthetic rubber that could be used to make biodegradable tires. A team at Texas AM Universitys campus in the Gulf nation o

发表于:2019-01-12 / 阅读(269) / 评论(0) 分类 2016年VOA慢速英语(九)月

'Smart' Bandages Could Heal Wounds More Quickly 智能绷带有助更快治愈伤口 Simple bandages are usually seen as the first line of attack in healing small to moderate wounds and burns. But scientists say new synthetic materials with embedded

发表于:2019-01-14 / 阅读(389) / 评论(0) 分类 VOA标准英语2016年(二月)

If you heard the first part, youll know that Princess Talia has woken up somewhat confused. She is a student at an ancient college, but shes not quite sure how she got there. In this episode we will find out how she fits into her new surroundings. Ou

发表于:2019-01-18 / 阅读(279) / 评论(0) 分类 Children’s Stories-儿童故事集

President Faust, Board of Overseers, faculty, friends, alumni, proud parents, 浮士德校长、校监委员会成员们、老师、朋友、校友、自豪的家长们、 members of the ad board, and graduates of the greatest university in the world

发表于:2019-01-25 / 阅读(275) / 评论(0) 分类 公众人物毕业演讲

Primal Scream is a tradition at Harvard University. At midnight on the last night of reading period and before final exams begin, students streak through the Old Yard. The streakers begin in the north end of The Yard and generally make one lap around

发表于:2019-01-29 / 阅读(295) / 评论(0) 分类 走进哈佛大学

Merton College is one of the constituent colleges of the University of Oxford in England. 默顿学院是英国牛津大学众多学院中的一个。 It was founded in 1264 by Walter de Merton, Lord Chancellor and Bishop of Rochester. 它于1264年由

发表于:2019-01-29 / 阅读(268) / 评论(0) 分类 走进牛津大学

伊卡柏卡迪尔(Iqbal Quadir)讲述了他童年在贫穷的孟加拉国以及之后在纽约作为银行家的经历。这些经历促使他筹建了一家手机运营商,连接孟加拉8000万农村人口,并成为自下而上发展的倡导者

发表于:2019-02-05 / 阅读(252) / 评论(0) 分类 TED公开课:贫穷至进步

达喀尔首次驶入玻利维亚 LA PAZ, Jan. 12 (Xinhua) -- Bolivian President Evo Morales Sunday celebrated his country's inclusion in the Dakar Rally, saying it marks the first time ever Bolivia has hosted a world-class sporting event. The race e

发表于:2019-02-07 / 阅读(297) / 评论(0) 分类 英语新闻

SANTIAGO, Jan. 17 (Xinhua) -- Spanish pilot Joan Nani Roma (Mini) in car category, Dutch Frans Verhoeven (Yamaha) in motorcycle category and Sebastian Husseini, from the United Arab Emirates, in quad category, Thursday won Dakar Rally' s 12th stage,

发表于:2019-02-09 / 阅读(253) / 评论(0) 分类 英语新闻

A flying robot piloted by brainwaves is just one of the ingenious new devices coming out of a top US university. Students are showing off their latest creations at the Maryland Robotics Day including the Neuro Sky Mindset and a snake-inspired search-

发表于:2019-02-14 / 阅读(268) / 评论(0) 分类 世界各地新闻集锦

Getting teary for you all, and getting teary for myself. I consider today a defining milestone in a very long and an bless journey. 为你们 也为我自己喜极而泣我认为 今天是一段漫长美好的旅途中的一个标志性里程碑 My o

发表于:2019-02-16 / 阅读(259) / 评论(0) 分类 公众人物毕业演讲

The Norwegian sailor, Jarle Andhoy with three other men, sailed to the Antarctic illegally. One of the men is a New Zealander. They did not have permission from the Norwegian government or from New Zealand. They wanted to know what happened to the bo

发表于:2019-02-17 / 阅读(242) / 评论(0) 分类 新西兰英语
学英语单词
algorithm organization
algorithmizable
alkyl phosphate salt
AMP deaminase
appendicled
aspasmichthys ciconiae
atomic powered ship
Better ask twice than lose your way once.
C.B.S.
calculated zenith distance
capacitance level meter
capacitor-frequency convertor
cartridge ball
cefuprenam
centre axle
cervical ripening
cinnamomin
clamp buffer
combat simulation on ground
complete removal
coneine
congested map
control contactor
DC shaft generator
dead-end station
didymolite
digitalis fclia
distempereth
diver's watch
duck an issue
earth-moon dynamics
Esseli
excipients
exodontology
extended guarantee
floating mark
foxfields
functional switching circuit
generating station
Gentiana ludingensis
genus Myxocephalus
girthed
glove box
green highs
gropy
hemicompact
Hi-Fi VHS
information bank
instant thick bodied soup
inverted-brush contact
irradiation channel
justice of appeal
lakeshore line
legitimatings
less-secure
loprazolam
median lise
memory address counter
methyl thiouracil
millon
moorable
Muck and money go together.
noisy text
odontolabis siva parryi
oil-bird
out-of-the-closet
outrigger canoe
perchromate
plaque technic
programming procedure
pub-crawling
purple actinidia
ramp beam
region
relieving block
remarketing
rising-sun magnetron
royal blue
RUN(pheniprazine)
s.l.a.n.
sbdc
scatter read
sfira (safirah)
single term expression
sojourn time
soryano (philippines)
sound-off
south-north
spear-headed
special symbol
Staroye Melkovo
subject heading language
theoretical approach
Titanclinogumite
trigonella ruthenica l.
tunicae vasculosa bulbi
uneven lustre
upshur
uze
War Ship Changed from Merchant Ship
whipstart
zinman