音标:[ləu məˈlekjələ ˈpɔləmə] ;
[医]低分子聚合物

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(104) / 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(136) / 评论(0) 分类 Scientific American(三)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Just when you thought youd heard everything, scientists have found that the reason you can hear everythingincluding things that are very quietis because

发表于:2018-12-24 / 阅读(96) / 评论(0) 分类 Scientific American(四)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(117) / 评论(0) 分类 Scientific American(一)月

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(118) / 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(153) / 评论(0) 分类 Scientific American(九)月

The 2009 Nobel Prize in Chemistry goes to Venkatraman Ramakrishnan of the MRC Laboratory of Molecular Biology in England, Yale Universitys Thomas Steitz, and Ada Yonath of the Weizmann Institute of Science in Israel for their studies of the ribosome.

发表于:2019-01-08 / 阅读(121) / 评论(0) 分类 Scientific American(十)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(127) / 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(176) / 评论(0) 分类 Scientific American(四)月

By Challiss McDonough Cairo 08 April 2008 Turnout has been very light in Egypt's local council elections as the main opposition group urged its followers to boycott the election when its candidates were disqualified. VOA Correspondent Challiss McDono

发表于:2019-01-10 / 阅读(98) / 评论(0) 分类 VOA常速英语2008年(四月)

By Cathy Majtenyi Nairobi 19 May 2008 Fuel efficient stoves and ceramic water purifiers are two examples of low-tech innovations that can help people in poor countries improve their quality of life. Because what is known as appropriate technology usu

发表于:2019-01-10 / 阅读(128) / 评论(0) 分类 VOA标准英语2008年(五月)

All Time Low The Wanted Praying won't do it Hating won't do it Drinking won't do it Fighting won't knock you out Of my head Hiding won't hide it Smiling won't hide it Like I ain't tried it Everyone's tried it now And failed somehow So when you gonna

发表于:2019-01-10 / 阅读(116) / 评论(0) 分类 好听的英文歌曲

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(86) / 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(174) / 评论(0) 分类 VOA标准英语2016年(二月)

AILSA CHANG, HOST: You may have heard in recent years that minor league baseball players don't exactly share in the riches of the game. Most minor leaguers make an estimated $7,500 per year. Major League players average more than four million. A law

发表于:2019-01-17 / 阅读(192) / 评论(0) 分类 2018年NPR美国国家公共电台8月

This years Nobel Prize in Chemistry is about the worlds smallest machines. G?ran Hansson, secretary general of the Royal Swedish Academy of Sciences, earlier this morning. The Royal Swedish Academy of Sciences has decided to award the 2016 Nobel Priz

发表于:2019-01-17 / 阅读(152) / 评论(0) 分类 2016年Scientific American(十)月

今天我们还是继续讲在大选年中时常用到的习惯用语。多数参选的侯选人在选战刚拉开序幕时常常会作承诺。例如,他们会信誓旦旦地保证绝不向竞争对手进行人身攻击,也决不信口诋毁对手

发表于:2019-02-12 / 阅读(166) / 评论(0) 分类 美国习惯用语

冠军单曲 围观帅哥:The Wanted - All Time Low The Wanted,英国新晋男子偶像组合为什么又是男子组合呢?还打偶像的招牌,看照片上果然是五只大帅哥,其中年龄最大的21岁,最小的17岁歌么,不错,

发表于:2019-02-17 / 阅读(117) / 评论(0) 分类 流行英文歌曲

How Low [Hook] How low can you go? [8x] [Ludacris] Luda! She could go lower than i ever really thought she could, Face down, ass up! The top of your booty jiggling out your jeans, Baby pull your pants up, I like it when i see you do it, Better then i

发表于:2019-02-18 / 阅读(157) / 评论(0) 分类 好听的英文歌曲

Low [Chorus:] Shawty had them Apple Bottom Jeans [Jeans] Boots with the fur [With the fur] The whole club was lookin at her She hit the flo [She hit the flo] Next thing you know Shawty got low low low low low low low low Them baggy sweat pants And th

发表于:2019-02-18 / 阅读(136) / 评论(0) 分类 好听的英文歌曲
学英语单词
.mobi
after conning position
airspace control plan
ampullae recti
antimeat
Arcadian youth
arerio-venous
Benny Goodman
Berezhnykh, Mys
bio-sensitivity
Brooklyn Museum of Art
cans you
cat you
cement plant
chemical equipment manufacturer
chlorostoma argyrostoma
choice of law clause
communication cords
concentration of inhibition
Coral Harb.
corchorus capsu laris l.
costal cartilages
coupled beat
CSRM
Dee-o Dee-o
disaccustoms
driling
drop forger
drug traffickings
eutectic system
exhaustive grouping
expressive of
flat wise bend
fuckbunnies
galvanized steel reinforcing mesh
get one's nose in
giant kangaroos
Gram-positive bacteria
gravimetric datum orientation
Hajodo
Hau Nghia, Tinh
herpes ophthalmicus
high-sign
himboes
horse sense
hydrous oxide
I. C. N.
interply adhesion
Kharaharapriya
konk out
Kornberg
kuehni
laboratory database
laser cavity regeneration process
ligamentum coronarium hepatis
long-est
macroamylasaemia
Martigné
mediational
minimum principal stress
ministers of state
minor-planet
monitor school
Morne-à-l'Eau
Muck and money go together.
nonfinitely
normalized mantissa
Nūnwāla
obsoletion
off frozen
optical regeneration
overall strain
paragglutination phenomenon
pilot mill
planetographic system of coordinates
plantose
polyvinyl chloride carpet
proment
proximity transducer
PSWCS
pulse modulated bridge
purplish-white
put an animal out of its misery
quaeres
resin content
Rhododendron kanehirae
rotary selector switch thermometer
scousers
seat-earth
siphon vortex flushing action
spruce gall aphids
stigma of ovulation
strike slop
support extension ratio
supporting statements
take the responsibility
tanklings
test and evaluation master plan
theoretical note
translabyrinthine
unsymmetrical short-circuit
wears someone out