磺胺酰脲,对氨苯磺酰脲

Abby: hi, my name's Abby. What's your name? Colin: I'm colin. It's nice to meet you. What do you do? A: I'm a freelance English teacher. How about you? C: I'm in between jobs at the moment. A: what kind of job are you looking for? C: I'd like to find

发表于:2018-11-30 / 阅读(201) / 评论(0) 分类 生活英语情景口语

Pet turtles can be unsanitary. But Chinese soft-shelled turtles really up the ante on distasteful behavior. They perform a variation on urinationthrough their mouths. Most land-based vertebrates produce urine to get rid of water-soluble toxic waste,

发表于:2018-12-24 / 阅读(172) / 评论(0) 分类 Scientific American(十)月

U.S. Vice President Joe Biden says he is withholding judgment on Iran's presidential election, as protests continue in Tehran over election results showing a landslide re-election victory for President Mahmoud Ahmadinejad. Vice President Joe Biden,

发表于:2019-01-13 / 阅读(168) / 评论(0) 分类 VOA标准英语2009年(六月)

By Sean Maroney Islamabad 28 September 2009 The head coordinator for the U.N. Humanitarian Affairs office in Pakistan says his agency is ready to handle what is expected to be a large number of families fleeing the South Waziristan tribal region as

发表于:2019-01-13 / 阅读(169) / 评论(0) 分类 VOA标准英语2009年(九月)

Scientists are using DNA to trace illegal ivory from slaughtered elephants to its countries of origin in an effort to nab poachers. Researchers are trying to combat the multi-billion dollar criminal enterprise at its source. A poached elephant Since

发表于:2019-01-14 / 阅读(133) / 评论(0) 分类 VOA标准英语2009年(七月)

BBC Learning English Weekender Body image survey results Amber:Hello, I'm Amber, and youre listening to bbclearningenglish.com. In Weekender today, we listen to a report about a BBC survey of 25,000 young British people, asking about their body imag

发表于:2019-01-16 / 阅读(198) / 评论(0) 分类 Weekender

The 2016 Nobel Prize in Physiology or Medicine goes to Yoshinori Ohsumi of Japan for his discoveries of mechanisms of whats known as autophagy. Break the word down and you get auto and phagy: from the Greek for self, auto, and eating, phagein. So, se

发表于:2019-01-17 / 阅读(164) / 评论(0) 分类 2016年Scientific American(十)月

Science and technology 科学技术 Reptilian micturition 爬行动物的排尿 That's a relief 可算是方便了 Softshell turtles urinate through their mouths 鳖类通过其嘴部小便 WHY did the turtle stick its head in a bucket? 为什么乌龟

发表于:2019-02-03 / 阅读(196) / 评论(0) 分类 经济学人科技系列

Adrienne: So, Rob, tell me why you don't like elephants! Rob: Why don't I like elephants? It's a long story. I was traveling in India with a friend of mine and one night we decided to spent the night in a national park, looking at wildlife, and we we

发表于:2019-02-06 / 阅读(141) / 评论(0) 分类 原版英语对话1000个

Omega Pharma-Quick Step grabs world team title THE HAGUE, Sept. 16 (Xinhua) -- Belgian cycling team Omega Pharma-Quick Step rode to victory in the men's team time trial at the road World Championships in Limburg, the Netherlands on Sunday. The team,

发表于:2019-02-06 / 阅读(149) / 评论(0) 分类 英语新闻

A bureaucrat was hiking when he came upon a shepherd tending a large flock. The bureaucrat took a fancy to the sheep and asked the shepherd, If I can guess how many there are, may I have one? The shepherd thought it unlikely the man would guess the e

发表于:2019-02-07 / 阅读(152) / 评论(0) 分类 趣味英语

By Scott Bobb Lisbon 10 December 2007 The Africa-European Union summit ended Sunday in Portugal with agreement on many global challenges but with differences on other key issues. Correspondent Scott Bobb has this report from Lisbon. European and Afri

发表于:2019-02-07 / 阅读(186) / 评论(0) 分类 VOA常速英语2007年(十二月)

今天我们要学的词是bureaucracy。 Bureaucracy, 官僚。美国国防部长盖茨上周末公开对军方庞大的官僚体制提出批评。 Gates took aim at what he called a bloated bureaucracy, 他还保证要亲自过问,精简军方的官

发表于:2019-02-08 / 阅读(130) / 评论(0) 分类 英语单词荟萃

Volkswagen has devised a new catalytic converter that could fix the majority of the cars in the US affected by the diesel emissions scandal, as details emerge of its attempts to satisfy regulators. 大众汽车(Volkswagen)设计出一种新的催化转

发表于:2019-02-08 / 阅读(163) / 评论(0) 分类 英语新闻

Conflict resolution marked the career of former Finnish president Martti Ahtisaari who has received this year's Nobel Peace Prize for his efforts to secure peace in various regions of the world. In this report from Washington, Senior Correspondent A

发表于:2019-02-12 / 阅读(135) / 评论(0) 分类 VOA标准英语2008年(十月)

MANILA, Dec. 7 (Xinhua) -- Death toll in the Philippines due to Typhoon Bopha (local name Pablo) has continued to rise to 418 based on the latest data released Friday by the National Disaster Risk Reduction and Management Council (NDRRMC). NDRRMC Exe

发表于:2019-02-13 / 阅读(141) / 评论(0) 分类 英语新闻
学英语单词
3-buten-2-ol
a letter of credence
absulute nullity
alerter
ali-digital correlation
alliston
anaerobic chamber
anaesthaesia
antennary furrow
asphalt storage tank
auro-auric compound
Authorized Participant
autonomous underwater vehicles
barbarus
Baumann-Goldmann's test
Brevazin
brushless excitation system
camera adjustment
CCP (critical compression pressure)
centrifugal-mechanism weights
ciber
cityhood
Clermont
curb ball
cut glasses
deobliquing
diameter at breast height
electric fog horn
electrical long distance water level recorder
Elymus trachycaulos
entertainment tonight
equilibrating movements of short term capital
favorable receptions
ferritin-labeled antibodies
ferroelectric domain
FFCS
fimbristylis aestsivalis vahl
fueyo
glencorses
gnathospasm
heteromerous flower
history of developing strategy
host formation
hypothesi
immunologists
intermittent nystagmus
Katholieke
Kazuomi
lateral ligaments of knee
lineae
liquid-cooled oil cooler
low-and-high-pass filter
lutein solution
Machtpolitik
main hoist
maintenance examination
Methylether
money damages
monochrome transmission
monteifiore furnace
neuronophages
neutral kraft
normalization of production
noxious stimuli
number nines
out-of-straight
ovanon
OXYAENOIDEA
passwordlike
perform an experiment
petruson
plastic seat
pumprooms
purchase-moneys
pyrolysates
real-time option board
reference arm
reflection plate method
resistance welding can
Roller's nucleus
Sabouce
self-contained system
septendecillions
single scattering albedo
stall net
surface scratch
taxes and rates
terminal utility
thyristor-leonard system
top combustion stove
toul
transfer head
turkey-poult
under-manned
unextractable
unpermanency
vacuum ionization gage
valence-state ionization potential
wash tub
wet markets
Zinc Dialkyldithiophosphate
zinc family element