硫化二(1-溴乙基)

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发表于:2018-12-04 / 阅读(183) / 评论(0) 分类 英文魔法师字源大挪移

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(182) / 评论(0) 分类 2014年VOA慢速英语(五)月

今天要讲的三个习惯用语都是和零碎的小东西有关。他们之间的区别只是使用的场合不同,或者是来源不一,用法相近。现在我们就分别为各位讲解这三个习惯用语。他们是:odds and ends, knic

发表于:2018-12-16 / 阅读(205) / 评论(0) 分类 美国习惯用语

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(136) / 评论(0) 分类 VOA双语新闻 2014年1月

I couldn't get over this mess. The federal government is confirming what Joan Glickman of Pompano Beach, Florida suspected all along. Tainted drywall from China is giving off a harmful gas that's turning her air-conditioning wiring black, causing it

发表于:2018-12-20 / 阅读(120) / 评论(0) 分类 cnn2009年(十一)月

bedizen, [bi'diz(ə)n] v 把装饰得过分华丽而俗气;穿着俗丽 【记】bed床

发表于:2018-12-30 / 阅读(162) / 评论(0) 分类 不择手段背单词

Grammar Girl here. Today's topic is words that can get you into trouble. Guest-writer Bonnie Trenga writes: Once upon a time, some mistaken citizens stood up for American principals, p-r-i-n-c-i-p-a-l-s. Across the Atlantic, a nutty queen sat on her

发表于:2019-01-02 / 阅读(207) / 评论(0) 分类 英语语法 Grammar Girl

Mercury Fillings Seem Safer over Time A study in the journal Chemical Research in Toxicology finds that mercury on the surface of dental fillings slowly turns to an inert sulfide compound, which should keep the mercury from harming the nervous system

发表于:2019-01-02 / 阅读(184) / 评论(0) 分类 60秒科学

From VOA Learning English, this is the Health Lifestyle report. Garlic is one of the most common cooking ingredients around the world. Many dishes in Europe, Africa, Asia and the Americas use this strong-flavored vegetable. Garlic is similar to other

发表于:2019-01-12 / 阅读(179) / 评论(0) 分类 2016年VOA慢速英语(十二)月

Ethiopia will accomplish the construction at any cost whether donors continue funds or not. The giant Gibe III dam, now being built on the Omo River in southwestern Ethiopia is a boon for some, a problem for others. Supporters say it will provide ele

发表于:2019-01-14 / 阅读(182) / 评论(0) 分类 VOA标准英语2010年(九)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(141) / 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(107) / 评论(0) 分类 白领英语晨读

Black Tongues and Stomach Aches Don: Oh, no, Ya?l, I think I'm having a medical emergency. Quick! Call an ambulance. Ya?l: A medical emergency, Don? Are you sure? You look fine to me! D: But I'm not. This morning, I had a terrible stomach ache. And n

发表于:2019-01-26 / 阅读(115) / 评论(0) 分类 英语听力文摘 English Digest

Sewage stinks. But bacteria can make it smell better. Oh, yeah? That's true. Certain forms of bacteria feasting on sewage give off hydrogen sulfide, a really malodorous chemical, and one of several that give sewage its pleasing smell. In general this

发表于:2019-01-26 / 阅读(120) / 评论(0) 分类 英语听力文摘 English Digest

By Jade Heilmann Dakar 19 December 2007 Africa is slowly bridging the gap that divides it from the digital world. Government officials and technology companies are trying to implement programs such as telemedicine and electronic education within the

发表于:2019-01-31 / 阅读(111) / 评论(0) 分类 VOA常速英语2007年(十二月)

今天Larry和李华要到朋友Bob家里,Bob因为要搬家,所以把他的立体音响卖给Larry。今天李华会学到两个常用语:dibs和shotgun. LL: I'm really glad that Bob gave me fi

发表于:2019-02-05 / 阅读(188) / 评论(0) 分类 美国之音《流行美语》

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(131) / 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(149) / 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(148) / 评论(0) 分类 万物简史

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(162) / 评论(0) 分类 TED演讲教育篇
学英语单词
'mones
accessory denticle
albitophyre
anthranilic acid
aquatic birds
barnacling
beam lead process
benthic flora
cackling
Campomoro, Pta.di
catalinoes
chart screen
cohqs
conditioning system
consid erer
conspurcating
cucumber fish
daughterboards
deep space antenna
descent phase
Deslandres
diborate
differential automorphism group
differential with side ring and radial cam plate
digists
dilucidations
double shaft mix rotor
dry ran,dry running
Elegy Written in a Country Church Yard
emittances
equipotent
ferdies
float barograph
Freudian aesthetics
function command
gastrointestinal dysfunction
glass fibre reinforced polyester resin
hardy har har
high-reflecting dielectric film
hole bored axle from end to end
hypereroticized
hyperkeratosis nigricans
Ierissos
immunology of leukocyte function
imputed malice
inner waters
internet marketing
isotopic thickness gauge
Ladogisk
lantern-light
large capacity memory
lasts
learning-styles
left anterior hemi block
lens nucleus
Life Master
linear programming bound
longitudinal divider
makes out
miss the cushion
Mobetsu-gawa
modefy
Mootwingee
naranas
new jack
odds-and-ends
out symbol
paintball guns
phase compound excitation
playght
ponoi
posse comitatus
presley
red-wat
rethresher concave
root opener
sagebrushes
scissorsbill
semigroup of quotients
serving on
shaping tool
shoval
signal distributor
standard gauge
straube
strumpell
sulfuraria
supervision and assessment
suspension of sixth
sweptforward wing
switch-hits
take-off distance
three-act
time write interval
two dimensional display
unbusinesslike proceeding
unhusbanded
unqualified confirmation of terms of transaction
urban legends
vision channel
volume of forest tree growth
workholic