立体异构聚合物

AMERICAN MOSAIC -January 25, 2002: Music by Aaliyah/a question about Guantanamo/a report on the Olympic Flame Broadcast: HOST: Welcome to AMERICAN MOSAIC — VOA’s radio magazine in Special English.

发表于:2018-12-07 / 阅读(137) / 评论(0) 分类 American Mosaic

AMERICAN MOSAIC -January 11, 2002: Music by Bob Dylan/question about Amtrak/furniture maker Sam Maloof HOST: Welcome to AMERICAN MOSAIC — VOA’s radio magazine in Special English. (THEME) This is D

发表于:2018-12-07 / 阅读(149) / 评论(0) 分类 American Mosaic

The war crimes cases of the former Bosnian Serb leader and the president of Sudan involve two separate courts, both in The Hague. Transcript of radio broadcast: 25 July 2008 This is IN THE NEWS in VOA Special English. Former Bosnian Serb leader Rado

发表于:2018-12-15 / 阅读(135) / 评论(0) 分类 VOA慢速英语2008年(七)月

今天要讲的三个习惯用语都是和零碎的小东西有关。他们之间的区别只是使用的场合不同,或者是来源不一,用法相近。现在我们就分别为各位讲解这三个习惯用语。他们是:odds and ends, knic

发表于:2018-12-16 / 阅读(188) / 评论(0) 分类 美国习惯用语

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(116) / 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(139) / 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(128) / 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(127) / 评论(0) 分类 60秒科学

AMERICAN MOSAIC - November 1, 2002: Music by James Taylor / Question About the Visa Lottery / Election Day HOST: Welcome to AMERICAN MOSAIC --VOA’s radio magazine in Special English. (THEME) This is

发表于:2019-01-02 / 阅读(169) / 评论(0) 分类 American Mosaic

AMERICAN MOSAIC - October 18, 2002: Music by Heather Headley / Question from China about the U.S. Court System / National Book Festival HOST: Welcome to AMERICAN MOSAIC --VOA’s radio magazine in Spe

发表于:2019-01-02 / 阅读(182) / 评论(0) 分类 American Mosaic

AMERICAN MOSAIC -July 26, 2002: Our New Theme Music / Question About a Book on American Indians, 'Hanta Yo' / A Celebration of American Theater HOST: Welcome to AMERICAN MOSAIC — VOA’s radio magaz

发表于:2019-01-07 / 阅读(190) / 评论(0) 分类 American Mosaic

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(168) / 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(137) / 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(188) / 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(95) / 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(188) / 评论(0) 分类 VOA标准英语2016年(二月)

AMERICAN MOSAIC -April 5, 2002: Berklee School of Music album / A question about Easter / A museum show honoring three female artists HOST: Welcome to AMERICAN MOSAIC — VOA’s radio magazine in Spe

发表于:2019-01-30 / 阅读(154) / 评论(0) 分类 American Mosaic

AMERICAN MOSAIC -March 15, 2002: Music written by John Williams / A question about Saint Patrick's Day / Watching baseball players get ready for the season Broadcast: HOST: Welcome to AMERICAN MOSAIC —

发表于:2019-01-30 / 阅读(262) / 评论(0) 分类 American Mosaic

李华和Larry到商店买东西。李华看到巧克力正在减价出售,所以买了一大堆。今天李华会学到两个常用语:chocoholic和fix. LL: Whoa, Li Hua. I didn't know you were s

发表于:2019-02-07 / 阅读(113) / 评论(0) 分类 美国之音《流行美语》

Sad Story( 悲伤故事)- Loveholic It's a sad story yunanhido balgun hessal gadughan ichi mothal haru nul kumkwo odon arumdaun nare baraji anhadon nunmuri chajawa Gude ibgae momun shirin maltuga modun bichul dada suchin barammajodo sumjugyo uro cause y

发表于:2019-02-07 / 阅读(192) / 评论(0) 分类 音乐咖啡厅
学英语单词
2-mercaptopropionic acid
air borne survey
ambulatorius typhus
anamalistic month
antafossa
antenna diameter
anti-gravity device
barristers
base metal fatigue strength
Benedict-Hitchcock's method
blood donor
bloxes
Brachygrapta
built-in journal
calisayas
canalejas de penafiel
cast a glamour over sb.
challenge system
cystourethrograms
dance attendance on sb.
darbepoetin
data-tablet
destructive distillation
disjointednesses
dispersion plating
ear plugs
electrodynamic type
film-type condensation
flaw sensitivity
flower color
fore-wonted
genus Myopus
Gothic novel
graduated ring
gravity flow machine
half-dozen
hemochromoprotein
herder
hiduous
homologations
Hyparotin
industrial emission
infinitely divisible distribution
input-output port
inwashes
keyes process
labelled ordered tree
leveling action
lift on lift off shipment
linearized approximation
longline machine
m.p.h
magilligan pt.
Malaccan
marcontell
Mt. Olympus
multiexciton
multipartyisms
natulanar
negative form of sea floor
no errors of measurements
operation control unit
optics of myopia
organisings
out-of-pocket-measure
peplomycin
platformticket
ploughing on
pole strip
preemption dispatching policy
pulsewidth control
Qogir Feng (Chogori, Mt.)
quantum corral
quarantine treatment
range display
result demonstration
retousled
Saccharomyces casei
scissor grips
security departments
short term scheduling
sipling
spectrometer detector
speech-read
spin-polarized functional
spiral disc
submarine haven
symbolic mathematics
thin window counting tube
third order
throw-out spiral
tool backlash movement
trataka
trauma surgery
tuberoinfundibular
ultrasonic tomography
unsealed roads
ventayles
vexillation
working holidays
XPath
yagi-uda loops antennas