[化] 乙基马来酰亚胺

AS IT IS 2014-05-25 Scientists Search for New Ways to Stop Mosquitoes 科学家们寻找新的方法来对付蚊子 The sound of a mosquito can mean trouble in many parts of the world. The bite of a mosquito can be deadly. Today, we will hear about s

发表于:2018-12-08 / 阅读(171) / 评论(0) 分类 2014年VOA慢速英语(五)月

美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 630,000 people died of malaria-related

发表于:2018-12-19 / 阅读(123) / 评论(0) 分类 VOA双语新闻 2014年1月

By Paula Wolfson Washington 07 July 2006 President Bush says the seven missile launches this week by North Korea provide an opportunity for the world to come together to deal with Pyongyang's nuclear ambitions. The president says he is optimistic di

发表于:2019-01-04 / 阅读(186) / 评论(0) 分类 2006年VOA标准英语(七月)

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(222) / 评论(0) 分类 2006年VOA标准英语(三月)

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(195) / 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(171) / 评论(0) 分类 VOA标准英语2011年(十一月)

Promising Mosquito Repellent Announced美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 6

发表于:2019-01-14 / 阅读(122) / 评论(0) 分类 VOA标准英语2014年(一月)

One Police stops on police vehicle outside one Victoria's Bar. After the preparation, as necessary arrests?, this liquor drive slightly mixes. Suddenly he sees to have a young people shakely goes out from bar, spend the many figures only then finds

发表于:2019-01-17 / 阅读(96) / 评论(0) 分类 白领英语晨读

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(194) / 评论(0) 分类 英语语法 Grammar Girl

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(159) / 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(192) / 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(128) / 评论(0) 分类 英语单词荟萃

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(106) / 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(120) / 评论(0) 分类 英语单词荟萃

On its website, a history of the company makes no mention of leador indeed of Thomas Midgleybut simply refers to the original product as containing a certain combination of chemicals. 在它的网站上,公司的历史没有提及铅──也没有提

发表于:2019-02-17 / 阅读(123) / 评论(0) 分类 万物简史

By counting back through these layers and measuring the amount of lead in each, he could work out global lead concentrations at any time for hundreds, or even thousands, of years. The notion became the foundation of ice core studies, on which much mo

发表于:2019-02-17 / 阅读(134) / 评论(0) 分类 万物简史

Lead is a neurotoxin. Get too much of it and you can irreparably damage the brain and central nervous system. Among the many symptoms associated with overexposure are blindness, insomnia, kidney failure, hearing loss, cancer, palsies, and convulsions

发表于:2019-02-17 / 阅读(129) / 评论(0) 分类 万物简史

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(108) / 评论(0) 分类 英语单词荟萃

If you were going to a restaurant and wanted a healthier option, 如果你去饭店,你想吃得健康一点, which would you choose, grilled or fried chicken? 你会选择哪种食品呢,烤鸡还是炸鸡? Now most people would answer grill

发表于:2019-02-21 / 阅读(148) / 评论(0) 分类 TED演讲教育篇
学英语单词
aayp
adpressed
airport-brown
Aliaguilla
all-commodity rate
allotted days
analysis of financial conditions
antipodal point
apecograph
apothecarist
apparatus cutting
armored searobin
artemisia anomala
basic bessemer pig iron
Brother Jonathan
bush fallowing
business registration
cabons
cancrum nasi
catadonyl alcohol
Cheongganjeong
considero
consumer debenture
cozeners
crumper
crystalline monochrometer
cutproof
cyclic expansion
dallying
Dempsey
enfastened
excess quantity
exotic breed
faceted crystal growth
federal standard 1027
Flexner's bacillus
genus Chlorophis
give someone up
graphing paper
gun-site
halfthrough arch
have a bone to pick with somebody
hilling bottom
hyperlipoproteidemia
i could murder something
ishii kann
jerman
Jungmun
leoun
leptochymia
level-adjusting attenuator
lubricated wear
lycoclavnol
major works
mantraless
McDonnel Douglas Aircraft Company
meet the challenge
myasthenia gravis pseudoparalytica
nickel yellow
Nicoll
nocuity
off (the) beam
olivescent
p-acetamidobenzoyl-eugnol
palmleaves
peacekeeper
physiology of circulation
play-offs
potenteal well
potshotted
proctoplasty
pump a prisoner
quick-release gear
repair activity
sale by samply
Sarandës, Rrethi i
sausage-shape
series-fed array
sherve
snakes in Iceland
specific reaction
sphere reflection
static vibration
Staurogyne hainanensis
supplier-driven e-marketplace
Taslicay
teratologists
these've
thraustochytrium proliferum
tortula euryphylla
triggered gaps
tsentralny
underpolluted
Vasvar
wave aside a proposal
wireframe
with the naked eye
wonton noodles
wordy
wormless
write out a list
yard-measure