苯基芥子油

Many of the Burgess specimens have now been assigned to living phyla just where Walcott put them in the first place. 许多布尔吉斯标本现在已经归到活着的动物的门里就是沃尔科特最初放置它们的地方。 Hallucigenia and s

发表于:2018-12-18 / 阅读(208) / 评论(0) 分类 万物简史

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to pro

发表于:2018-12-24 / 阅读(180) / 评论(0) 分类 Scientific American(三)月

Fun Fact: Alligators Can Regrow Teeth 有趣的事实:短嘴鳄可以再长牙齿 Fun fact about alligators: they can regrow any of their eighty teeth up to fifty times. Which is pretty impressive, especially compared to us relatively dentally chal

发表于:2018-12-28 / 阅读(172) / 评论(0) 分类 初学者听力文摘精选

its time again for the A Moment of Science mailbag. A listener writes: Dear A Moment of Science, Ive always been fascinated by volcanoes. So I was wondering: How well can scientists predict when and where a volcano will erupt? Intersting question. Th

发表于:2018-12-31 / 阅读(159) / 评论(0) 分类 英语听力文摘 English Digest

By Bill Rodgers Washington. D.C. 29 March 2006 watch Civil War report A grieving widow touches her husband's coffin as it is carried to a cemetery The continuing sectarian violence in Iraq has raised

发表于:2019-01-06 / 阅读(298) / 评论(0) 分类 2006年VOA标准英语(三月)

This is Scientific American's 60-Second Science. I am Steve Mirsky.Got a minute? Talk about your vicious cycles. A new study finds that belly fat could be making you hungrier. Which would lead to more belly fat. The research was performed at the Univ

发表于:2019-01-08 / 阅读(209) / 评论(0) 分类 Scientific American(四)月

Algae seem harmless enough. These precursors to plants thrive throughout the world's waters. But these single-celled plants have global consequences. We can thank them for oxygen in the atmosphere, oil in the lithosphere as well as dead zones in the

发表于:2019-01-08 / 阅读(223) / 评论(0) 分类 Scientific American(十一)月

By Scott Stearns White House 21 March 2006 President Bush President Bush says there is more fighting ahead in Iraq, but he is confident U.S. troops will be victorious. Mr. Bush held a White House news

发表于:2019-01-13 / 阅读(265) / 评论(0) 分类 2006年VOA标准英语(三月)

Libyans Optimistic on Democracy, Challenges Loom In the first blush of enthusiasm after the nine-month struggle to oust Moammar Gadhafi, many Libyans are optimistic that the country will be able to move toward democracy with little payback for the ir

发表于:2019-01-13 / 阅读(287) / 评论(0) 分类 VOA标准英语2011年(十一月)

Hi! This is Stever Robbins, host of the Get-it-Done Guys Quick and Dirty Tips to Work Less and Do More. Grammar Girl is working on her book this week and since I do a lot of public speaking, she asked me to talk about how to use similes and metaphors

发表于:2019-01-30 / 阅读(271) / 评论(0) 分类 英语语法 Grammar Girl

AGRICULTURE REPORT – March 12, 2002: Carbon Dioxide and Crops By George Grow This is the VOA Special English AGRICULTURE REPORT. Increasing levels of carbon dioxide gas in Earth’s atmosphere have

发表于:2019-01-30 / 阅读(205) / 评论(0) 分类 农业与发展

By Mohamed Elshinnawi Washington, D.C. 07 March 2006 watch IAEA report A defiant Iran warned the International Atomic Energy Agency that it would press ahead with uranium enrichment if the agency push

发表于:2019-01-31 / 阅读(229) / 评论(0) 分类 2006年VOA标准英语(三月)

By Melinda Smith Washington, DC 12 January 2007 watch Organ Donor report Human tissue for transplant being delivered to a hospital The traffic in human organs for transplantation is a volatile issue in the medical community and among desperately ill

发表于:2019-02-02 / 阅读(255) / 评论(0) 分类 2007年VOA标准英语(一月)

今天我们要学的词是,limited。 Limited, 是有限的意思。拉美裔移民在维吉尼亚州的王子威廉姆斯县罢工一天,The one-day work boycott appeared to have a limited effect on businesses in the county. 但似乎并没有对

发表于:2019-02-03 / 阅读(188) / 评论(0) 分类 英语单词荟萃

By Lisa Schlein Geneva 06 July 2007 Business leaders from 150 companies from around the world are calling for action on climate change. The leaders signed a declaration at a United Nations meeting, in which they committed themselves to reducing the d

发表于:2019-02-03 / 阅读(214) / 评论(0) 分类 2007年VOA标准英语(七月)

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(351) / 评论(0) 分类 英语新闻

Iraq's electoral commission has announced the preliminary results of last weekend's provincial elections, amid some accusations of irregularities and voting fraud. The Iraqi army and security forces, however, say that they will maintain order despit

发表于:2019-02-06 / 阅读(182) / 评论(0) 分类 VOA标准英语2009年(二月)

今天我们要学的词是timing。 Timing, 时机。中文里说,赶得早不如赶得巧。英文里说, Timing is everything. 时机决定一切。The timing of his marriage proposal was perfect, 他求婚的时机恰到好处。 目前就业市场

发表于:2019-02-07 / 阅读(181) / 评论(0) 分类 英语单词荟萃

今天我们要学的词是optimistic。 Optimistic乐观的。美国第二季度国内生产总值公布后,President Barack Obama said he is 'guardedly optimistic' about the direction of the U.S. economy, 美国总统奥巴马表示,他对美国经

发表于:2019-02-18 / 阅读(206) / 评论(0) 分类 英语单词荟萃
学英语单词
acoustic emission spectrum
aflood
Alchornea mollis
allitt
approximation of function
Arecibo ionospheric observatory
bedroomlike
benzoidhydrin
Bering Sea
bfr.
bryum handelii
carbon costs
carraras
Cheilotheca macrocarpa
chromium-plated
circumgyrate
complex harmonic voltage
compound applier
czarna dabrowka
dalcotidine
Davis Mountains
development system target interface
Dixiana
DX5
dynamic-load stress
enduring
enteroanastomosis
extended spindle
fiber sensor
foligno
font name
generator loss
gold number method
Grassmanian variety
Halothanum
heapable
helicinae
heterophyllolites
hub length
i am willing
incident nucleon
industrial management
inside covering
Iodobotallackite
ionizatoin energy
jasnies
JCE
juter
kaloula pulchra pulchra
lacerability
lodgepole pines
macrorheology
maletamer
malleablization
mark up inflation
mesenteriolum processus vermiformis
metric tensor
MIBE
micro-scanner
neutral alien
newscutting
nunny bag
or operation
Oshoek
Paso Ancho
pick off diode
Pinta Island
planifolia
planning and scheduling
podo-
ponogena
posterior sternoclavicular ligament
primer binding site
prize cases
professional accountant
punt-return
quality of life commercial
quantitative mineralogical analysis
random deposition
recanted
redcap
refreezing
reversed pawl
sample-to-background activity ratio
Save, R.(Sabi R.)
stadially
sulies
supplicamus
suturae sagittalis
tack cringle
the new millennium
three-dimensional consolidation
title-deed for house
toad-fish
tobacco ring spot virus
top iron and screw
transcription date/time
uncoined
valerolactam
warehouse-in inspection
wouldingness
zanussi