[网络] 苯基丁酸

When you call someone but they arent there, often their voicemail picks up or answers the phone. Then you have to leave a message. Anyone who uses the phone in their job has to deal with voicemail. Have you ever started to leave a message on someones

发表于:2018-12-05 / 阅读(230) / 评论(0) 分类 商务电话英语

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(186) / 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(166) / 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(149) / 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(138) / 评论(0) 分类 英语听力文摘 English Digest

Pete is schizophrenic. About one percent of people are schizophrenic. Schizophrenia is a mental condition. Its cause is unknown. There is no cure. Drugs can help a person live with the condition. But these drugs have side effects. Schizophrenia usual

发表于:2019-01-02 / 阅读(174) / 评论(0) 分类 原版英语小短文

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(186) / 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(199) / 评论(0) 分类 Scientific American(十一)月

By Ron Corben Bangkok 23 June 2006 Foreign ministers attending a meeting of the Organization of the Islamic Conference have raised concerns over continuing violence in Thailand's largely southern Muslim provinces. The Thai government has responded t

发表于:2019-01-13 / 阅读(218) / 评论(0) 分类 2006年VOA标准英语(六月)

By Benjamin Sand Islamabad 16 June 2007 A senior U.S. official in Pakistan provided the strongest indication yet that Washington will stand by embattled Pakistan leader Pervez Musharraf. U.S. Deputy Secretary of State John Negroponte, in Pakistan for

发表于:2019-02-03 / 阅读(213) / 评论(0) 分类 2007年VOA标准英语(六月)

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(329) / 评论(0) 分类 英语新闻

By Dan Robinson Washington 15 June 2007 As debate continues over Iraq, U.S. lawmakers have heard from a number of voices including U.S. military officials, and current and former U.S. and Iraqi diplomats. VOA's Dan Robinson was present during many of

发表于:2019-02-06 / 阅读(243) / 评论(0) 分类 2007年VOA标准英语(六月)

Adriana: Shhh, Im trying to listen to the radio. Ralph: How can you listen to that radio station? All of their deejays have such funny voices. Adriana: Thats precisely why I like it. Take this guy, Kevin. He has a deep , husky voice that I find reall

发表于:2019-02-07 / 阅读(200) / 评论(0) 分类 地道美语播客

U.N. Secretary-General Ban Ki-moon says he is deeply concerned about civilian casualties in Afghanistan. Mr. Ban called for closer cooperation between civilian and military leaders. U.N. Secretary-General Ban Ki-moon, and Afghan President Hamid Karz

发表于:2019-02-07 / 阅读(192) / 评论(0) 分类 VOA标准英语2009年(二月)
学英语单词
'Oneata I.
abscissae
Achaea
aerogastrocoly
agriculturer
ahktar
ailishes
amphidromy
Apache License
backup volume clean-up process
barrage reception
bell-change step
biologic time
birth-flower
Bjorksele
blow a Gallic gasket
boat arrangement
cabinet-makers
carrier-actuated relay
centrifugal force
change ... clothes
coke deposition
colo(u)r grades of rosin
colonialist
compound oven
cottagery
crack arrestor
cut the record
deck water piping system
denary band
dephenolization
dong trieu
duplexing assembly
dustopia
Dutch Ovenning
electric circuit protection equipment
electrophoresis chamber
exodist
external quality factor
financial revenue and expenditure
financial sector
fire-sprinkler
four-cylinder
gas cap gas
gauge box
glucosometer
hamfist
Helvetian voile
hospital-grade
howell-bunger velve
in-line skates
inspection of passenger transportation
knock-down, drag-out
Kwanmosan
leibsohn
lifting derailing
low amplitude
megaloblastic anaemia
Miriňay, R.
multi-purpose infrared system
necropoli
overmagnifies
oysterer
packeted scrap
partner's account
petars
ponatinib
positive fractional exponent
positron-annihilation energy
pricci
raise oneself up above the crowd
rectosigmoidoscopy
response surface designs
round screw pin shackle
running score
S-TAG
safety platform
saint valentine
Sandiacre
scorers
selfmetathesis
sequence of linear functionals
shunting engine kilometer
Siegburgite
social perception
spatial economics
spiral conveyer
spring corn sheller
static ratio
strap out
survey for water table level
tablemeal
tabularization
tax exemption certification
Theveneriine
tip-off angle
top brace
tridecapeptide
trimethylpentanes
uterus atrophy
western whiptails