[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(113) / 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(108) / 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(91) / 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(55) / 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(51) / 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(84) / 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(97) / 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(95) / 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(123) / 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(99) / 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(208) / 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(157) / 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(117) / 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(93) / 评论(0) 分类 VOA标准英语2009年(二月)
学英语单词
a nail in someone's coffin
abc analysis
acouired syphilis
adverbial participles
Alemeth
angle of reentry
audio access unit
aureums
axillary meristem
Bhattacharyya lower bound
block-and-block
broilable
bull thistles
burst cartridge detection
carbon tissue process
Carex longispiculata
Centaurea imperialis
channel mask
chower
cog wheel coupling
comprehensive rehabilitation
container ship
cord vessels
course shift
cup-eyes
cypraea pallidula
declining industries
dendera
dimensional characteristic
display vector
distribution-list entry
Eastman Kodak Co.
enterstomy
error-sorting rate
existing business
fain
farm family loan
flat chisel
flight simulator for advanced aircraft (fsaa)
freezing thermostat
hard chromium
horse sera
hot-atom reactions following beta decay
Hwap'yǒng
hydrogen tellurate
ice doubling
inside plant
integer-spin
kidney belt
Kundt effect
laciniatus
laser bonding
Lepadidae
like clockwork
Lincolnshire Longwool
liquid-deuterium target
Lukino
mady
magnetic suspension spinning rotor gauge
majority logic decoding
maradik
mechanical design technology
melungeon
nail bombs
nastistical
nature-of-circuit indicator
Office Vision
optimal type-B2 convolutional code
palaeozoogeography
panel warp
payout ratio
pericardial septum
Peucedanum declursivum Maxim.
phosphorus pentahalide
play the role of
pollute the environment
postabsorption
preceid
pulsating load
punde
puts those down
ravanel
saem
Santa Maria Maggiore
saturated level
serpent worm
setting angle of blade
simulated re-entry environment
snideness
speed-independent training equipment
St Elizabeth Parish
suborder sauropodomorphas
swails
synchronized sleep
tax-exempt items allowance
thermal collapse
thin prism
time-contour map
Tomina
transverse roof stay
washermen
Weibull plot