焦磷酸四乙酯,特普

A few weeks after my eighth birthday, my grandmother took me to visit her friend Naomi. The rooms Naomi lived in could have been called a 1) flat, I suppose, but it wasn’t a flat in a modern block.

发表于:2018-11-28 / 阅读(255) / 评论(0) 分类 疯狂英语2002年

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(191) / 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(142) / 评论(0) 分类 VOA双语新闻 2014年1月

This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang

发表于:2018-12-24 / 阅读(174) / 评论(0) 分类 Scientific American(一)月

今天我们要学的词是appreciate。 Appreciate, 有表示感激的意思。I appreciate your help, 感谢你的帮助。I appreciate any suggestions you can give me, 感谢你能给我的一切建议。We should learn to appreciate what we have,

发表于:2018-12-30 / 阅读(137) / 评论(0) 分类 英语单词荟萃

T Tanshinone IIA 丹参酮IIA Tanshinone I 丹参酮I Tanshinone IIB 丹参酮IIB Taraxasterol 蒲公英甾醇 Taraxerol 蒲公英赛醇 Tauro ursodesoxy cholic acid 牛磺熊去氧胆酸 Taxifolin 花旗

发表于:2019-01-03 / 阅读(154) / 评论(0) 分类 医务英语

A: How may I help you? B: I want to get a passport. A: You need to apply for a passport. B: When can I apply for it? A: You can apply right now. B: Id like to do that. A: Fill this out, please. B: Whats next? A: I will need to take your passport pict

发表于:2019-01-11 / 阅读(171) / 评论(0) 分类 英语情景对话-图书馆

A: What may I do for you? B: I need to get a passport. A: You will need to apply for one. B: When will I be able to do that? A: You can do it right now, if youd like. B: Thats fine. A: Please fill out this application. B: Then what do I do? A: I just

发表于:2019-01-11 / 阅读(137) / 评论(0) 分类 英语情景对话-图书馆

By Margaret Besheer Beirut 27 August 2006 Lebanese Sobhi Abbas, top, comforts his son Abbas Abbas, 6-years-old, who was injured while playing with a cluster bomb in Blida, on Saturday August 26, 2006 Two weeks ago, a U.N. brokered truce ended 34 day

发表于:2019-01-13 / 阅读(230) / 评论(0) 分类 2006年VOA标准英语(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(149) / 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(113) / 评论(0) 分类 白领英语晨读

A: Hi. I'd like to get your store credit card. B: Here's the application form. A: ...I'm finished. Here's the form. B: Thank you. Now if you'll just give me a credit card. A: Here's my VISA. B: Thank you.

发表于:2019-01-20 / 阅读(156) / 评论(0) 分类 购物英语对话

A: I want to get a store credit card. B: I have the application form right here. A: ...Okay. I've filled out the form. Here you go. B: Thanks. Now all I need to see is a credit card. A: Here's my MasterCard. B: Thank you very much.

发表于:2019-01-20 / 阅读(148) / 评论(0) 分类 购物英语对话

WASHINGTON, June 25 (Xinhua) -- Ryan Lochte edged Michael Phelps in the men's 400m individual medley at the US Olympic swimming trials Monday. Lochte took the lead on the breaststroke leg of the four-stroke event and held off Phelps in the closing fr

发表于:2019-02-06 / 阅读(167) / 评论(0) 分类 英语新闻

Private funeral held for Fawcett 福塞特的私人葬礼 A private funeral has been held for US actress Farrah Fawcett, who died last week of cancer. Her partner, actor Ryan O'Neal, was a pallbearer (抬棺者) Their son Redmond, who was recently jailed on

发表于:2019-02-08 / 阅读(193) / 评论(0) 分类 英语新闻

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(144) / 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(158) / 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(161) / 评论(0) 分类 万物简史

10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur

发表于:2019-02-17 / 阅读(185) / 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(176) / 评论(0) 分类 TED演讲教育篇
学英语单词
additional services
admit og no doubt
admitted evidence
alkylators
an aeroplane shed
approximable function
armboard
auriculares
ayatollah
bazzania bidentulum steph.
be dead
bendick
bit size
Black-and-Tans
Buhlmann's fibres
Cacalia profundorum
candy wrapper
caudal mesenteric ganglion
central tendon of diaphragm
ciconiiform
cliquiness
club-haul
codists
cox's
creedence
crepe ondoe
cutaneous lymphopathy
cytopathologists
dedicating
dipper shovel
disruptive capital movements
Echinothuriidae
ectonucleotide
elaboration of task body
eocardiids
exhaust gas scrubber
field-by-field form
frigorific nerve
front mill table
furnace water cooling
geometric resonance
glickes
Grice
haemosporidians
He laughs best who laughs last
heroic stanzas
Hexamita meleagridis
high level of phosphorus
hogtveitite
hydrogenides
idle microphone
intell
jdvs
jerkinheads
Kendall compound E
lathe-bed
limitgage
lives large
machine scarfing
macro-sociological
maroh dance (celebes island)
masticonic acid
model soil
music synthesizer
Nipodal
non-singular variety
nozzle water supply method
oligoamine
operation requirement
oxoisomerase
Pennant Pt.
polynoids
pop musicians
positive-edge-triggered
preyed
program data
rolling-up curtain weir
sellner
Slow ahead both engines!
snails
sneaksbies
sonic homing
spinach salad
standard u channel
synchronization point
tangerine seed
Tantura(Dor)
taping stool
tetradecylene dicarboxylic acid
tipula (vestiplex) nokonis
track support roller
trega-
tubular motor
undecyndioic acid
unmiter
unsportings
value-added product
waste-butt
water entrained by steam
winterberry holly
y/u/v
zero discharge system