乙酰蓖麻醇酸甲氧基乙酯

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(213) / 评论(0) 分类 2014年VOA慢速英语(五)月

A Abrine 相思豆碱 O-Acetyl-3,6-di-O-β-D-xylopy-rano- astragaloside O-乙烯 3,6-双氧-β-D- 吡喃木糖基绵毛黄芪甙 Acetylastragaloside 乙酰黄芪甙 N-Acetyl-D-Glucosamine N-乙酰氨基

发表于:2018-12-08 / 阅读(175) / 评论(0) 分类 医务英语

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(176) / 评论(0) 分类 VOA双语新闻 2014年1月

86 去痛片须慎用 DATE=8-16-01 TITLE=SCIENCE REPORT - OxyContin Warning BYLINE=Jerilyn Watson (Start at 1'02

发表于:2019-01-02 / 阅读(195) / 评论(0) 分类 科技之光

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Landfills produce methanewhich can be valuable as an energy source. But scientists haven't known why landfills make so much methane. The solid waste in

发表于:2019-01-08 / 阅读(222) / 评论(0) 分类 Scientific American(四)月

Hurricane Dolly made landfall just north of Brownsville, Texas as a Category Two storm with winds more than 160 kilometers per hour and heavy rains. Although Dolly passed over some oil and gas rigs in the Gulf of Mexico, the hurricane had minimal im

发表于:2019-01-13 / 阅读(153) / 评论(0) 分类 VOA标准英语2008年(七月)

Synthetic Drug Problematic for US Authorities Augusta County, Virginia, is a rural county in the Blue Ridge Mountains, two and a half hours southwest of Washington. It has a big problem. Sheriff Randy Fisher says Augusta County was once known as the

发表于:2019-01-13 / 阅读(253) / 评论(0) 分类 VOA标准英语2012年(六月)

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(151) / 评论(0) 分类 白领英语晨读

Beginners. Well, it's time for a new dog. For the past year, we have been a one dog family. But, you know, our dog, Rosie, is a wildly social lady. She goes crazy any time she meets another dog, a cat, a mouse, or a bird, let alone a human. But, the

发表于:2019-01-28 / 阅读(177) / 评论(0) 分类 英语博客 A cup of English

By Scott Stearns white House 18 January 2007 The White House is dismissing reports of friction between Iraqi Prime Minister Nouri al-Maliki and U.S. President George Bush. VOA White House Correspondent Scott Stearns reports, the Bush administration

发表于:2019-01-31 / 阅读(174) / 评论(0) 分类 2007年VOA标准英语(一月)

Raw anti-drug campaign awakens state Ted Landphair | Missoula, Montana 04 February 2010 Photo: Montana Meth Project Adults across Montana were frightened by what they were seeing. Some hardly recognized their meth-addled teenagers. Related Links Mont

发表于:2019-02-02 / 阅读(166) / 评论(0) 分类 VOA标准英语2010年(二月)

中草药成分英语单词 A Abrine 相思豆碱 O-Acetyl-3,6-di-O--D-xylopy-rano- astragaloside O-乙烯 3,6-双氧--D- 吡喃木糖基绵毛黄芪甙 Acetylastragaloside 乙酰黄芪甙 N-Acetyl-D-Glucosamine N-乙酰氨基葡萄糖糖 6``-acetylhyperoside 6``-乙酰氧基金丝桃甙 Acetylsh

发表于:2019-02-02 / 阅读(203) / 评论(0) 分类 英文语法词汇

By Melinda Smith Washington 14 May 2007 Top executives of the company that makes a powerful painkiller called Oxycontin admitted this week they lied about the drug's addictive qualities in order to boost sales. As VOA's Melinda Smith reports, worldwi

发表于:2019-02-03 / 阅读(224) / 评论(0) 分类 2007年VOA标准英语(五月)

Beginners. Today, Foxy had an appointment with the vet for vaccinations and a general check-up. She is about eight months old, so she needed her second set of vaccinations. The vet also needed to see if her growth was normal and healthy. I put her in

发表于:2019-02-07 / 阅读(195) / 评论(0) 分类 英语博客 A cup of English

Abadie's Sign Chinese阿巴迪征(跟腱受压无感觉,见于脊髓痨) Abaptiston Chinese安全开颅圆锯 abarognosis Chinese压觉缺失 abasia astasia Chinese立行不能 abasia Chinese步行不能 abdominal reflex Chinese腹壁反射 abduction Chinese外展 abiotrophy Chinese生活力

发表于:2019-02-07 / 阅读(204) / 评论(0) 分类 英文语法词汇

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(172) / 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(188) / 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(197) / 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(204) / 评论(0) 分类 TED演讲教育篇

Voice 1 Hello. Im Ruby Jones. Voice 2 And Im Marina Santee. Welcome to Spotlight. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. A small candle burns. It re

发表于:2019-02-21 / 阅读(168) / 评论(0) 分类 环球英语 Spotlight
学英语单词
antipestilential
Apollo object
appetisingness
associated factor sets
Austertana
autogonism
Balfourian
band filter
be beyond restraint
bed filling
bilitrien
biopool
boozed up
bromadiolone
cabin hygiene
carbonate rock
carry-over conveyer
cesium trichlorocuprate(ii)
coated side
Cobinotron
conditional probability estimate
coordination input
coryve
counter screen
crusading
diaclastic amputation
dryer thermal efficiency
economic legal studies
erharts
error constant
financial statement
flat top
Fort McMurray
fossa sagittales dextr? (hepatis)
hand operated direction valve
hang in there!
happy anniversary
hockeys
horseweeds
ice machine
isopropylmolic acid
knife blade switch
Lake Wobegon syndrome
large-chested
leakiest
luzern (lucerne)
marjies
micronemes
migrant shrike
minor triad
multiple bed deionisation(zation)
Natsiatum
Noiseux
non-events
nostalgist
orifice(plate)
oxidized fat
oxobromide
pen box
perleche
plom
potassium chromic sulfate
premium-bonus
re-approve
relativistic flight
remand prisoner
rentz
resistance element
resting tumor
right to equal pay for equal work
rottenberg
rush grasses
Russian parallel grammar
security/multipurpose internet mail extensions
shimamushi
solar storm
Sonvilier
standard series method
straightens
Sunday ticket
superannuated
tax-exempt import tax-free import
the heart wants what it wants
thea reticulata var.plena hort.
Thladiantha cordifolia
thrust bearing segment
tight metal container
time of earthquake at epicenter
tomoscanner
trappiste
Trifolieae
type posture
udept
ultra-high-pressure valve
undemarcated boundary
unitary budgetary system
usphs
vegetable basket
venomous
vibration recorder
vouch for sth
windspeed recorder