N-2-氰乙基苯丙胺

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(172) / 评论(0) 分类 2014年VOA慢速英语(五)月

US President Barack Obama has outlined big cuts to the military and a greater presence in the Asia-Pacific region. Tens of thousands of troops will be axed to find half a trillion dollars in savings over the next decade. President Obama says troop nu

发表于:2018-12-11 / 阅读(85) / 评论(0) 分类 澳洲ABC新闻快递2012年

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(124) / 评论(0) 分类 VOA双语新闻 2014年1月

Last week, tens of thousands of gallons of sewage gushed into urban streams in Baltimore, because of leaky pipes and flooding rains. And when that happens, it's not just organic matter and microbes that get flushed into aquatic habitats. It's drug re

发表于:2018-12-24 / 阅读(97) / 评论(0) 分类 2016年Scientific American(八)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(123) / 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

The planet also began releasing oxygen, thanks to an ancient adoption of photosynthesis. A very ancestral primitive plant cell either engulfed or tried to digest or surrounded a cyanobaterium and instead of digesting it, it actually became an organ w

发表于:2019-01-23 / 阅读(121) / 评论(0) 分类 探索与发现2014年

 Superglue 强力胶 Male: Help!Help! Female:What's wrong? M: I was fixing my coffee cup with superglue .And I must have got some on my fingers but I scratch my forhead.And now my hand is stuck to my head. F: Superglue ? Cool! What makes supergl

发表于:2019-01-26 / 阅读(103) / 评论(0) 分类 英语听力文摘 English Digest

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(133) / 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(149) / 评论(0) 分类 TED演讲教育篇
学英语单词
Abucay
acciacatura
alienate from
annie oakley
anthracene green
bill retired
bouting
bpauv
break down into
butylated hydroxytoluene
Caragana opulens
Catalpa L.
chart grammar
chemotransport
chicken hazard
chippie sauce
coastal terrace
common pardon
complex spatial filter
coroneted
data logging machine
degeneracy operator
detachable cabin
detonations praying
disbounds
double saw
drip into
effective peak number
egosurfed
energumens
equivalent of cantilever spring
exclusive-user circuit
extension instrument
feel honoured
ferrari-carano
ferrous sulfate injection unit
field budding
fixed sprinkler
foam backed fabric
fossae intercondylaris
full-wave square-law detector
gavel
gearbox oil filler
Glycogen(starch)synthase
graphic-art technique
gravel pipe
green core
highest ambient temperature
hot-mix-cold-laid
immunovirological
inferior carotid triangle
Ishimskaya Ravnina
katante
knap off
lakhani
main dispatching centre
mashs
master manipulator
media frenzy
microphyric texture
Milan, Edict of
milenkovich
miselled
multi-group
multiple instruction single data
mutual broadcasting company
National Museum of Fine Arts
non spiritual
Oberkochen
oil-repellent
overwets
page replacement algorithm
Palāndur
Pashur
Paulism
Pediocactus
physical and mental health
physiocrat
polypropionates
pure independent set
rates percentage charge
saddle heather
shaft guard
sharp trace
some-some-some
supertrunk coaxial cable
swellie
taille-douce
timevariation
toasted skin syndrome
Toison's solution
Tonnage Regulation
top of cutting slope
trammell
two layer winding
uperlip
vector function generator
viles
villagy
weighted digraph
Wickatunk
zweiten