硫化二(1-溴乙基)

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发表于:2018-12-04 / 阅读(137) / 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(136) / 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(159) / 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(94) / 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(88) / 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(118) / 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(162) / 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(150) / 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(130) / 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(144) / 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(93) / 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(68) / 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(78) / 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(81) / 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(75) / 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(136) / 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(93) / 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(109) / 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(102) / 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(122) / 评论(0) 分类 TED演讲教育篇
学英语单词
AC equivalent inductance
acacias
acoustical reflection factor
active group
air cooled turbo-generator
allodial titles
angle of side slip
base form
brand leveraging
Calabanga
character controlled generator
check spring take up
cool down rate
corn protein fiber
cutround
CY to CFS Service
diamertric(al)
electronate
examination and approval authority
fermison
five hundreds
Frances Lake
G.F.P.(gas fission product)
gm-csfs
gragas
hepatocholangioenterostomy
hinged movable support
Hitzkirchen
hollow nose tongs
hornifications
hybrid ribosome
infinites
inhabitant
insectas
insulation aging rate
isocomplementophilic
isodarutigenol
Jonancy
kylle
lecours
measuring pitch
meat fork
Melville B.
membrana vestibularis
Nanocnide
narcisline
noncelibate
nonmasturbatory
obsessivenesses
obstain
oil in bulk
one plus one
parallel fold
pentritol
phiz
photocell whiteness meter
plume theory
post a ship
potassium manganese(ii) sulfate
precisely
predetermined dimension
relection characteristics
remote control aircraft
Rhizocarpon
rhizophydium karlingii
roller-towel
ryzin
samori
Sao Tome e Principe
self inspection
Seonāth R.
serpent holder
sesame oils
shake-and-bake
Simón, I.
skim bar
solid state logic
spark lighter
steel figure punch
stopping limit mark
styrenic thermoplastic elastomer
subclaim
subjective goodwill
swine fat
Tarmosept
Tarumirim
three-finger
time of half dyeing
trolley-pivot
twyman and gerrn interferometer
under produce
valve grinding
Vialar
vibramat
vitex cannabifolia sieb.et zucc.
volatile substance
whale tails
wine barrel
wood splint
worry sb for
zetmeter