[化] α-溴代丙酸乙酯

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(133) / 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(154) / 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(90) / 评论(0) 分类 VOA双语新闻 2014年1月

Nate:I dont like my baby picture. 奈特:我不喜欢我的婴儿照。 Eve:Why not? 伊芙:为什么不喜欢? Nate:I just dont. 奈特:我就是不喜欢。 Eva:But they are cute. Look! 伊芙:但是他们很可爱耶。你看!

发表于:2018-12-26 / 阅读(84) / 评论(0) 分类 天天练口语

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(159) / 评论(0) 分类 英语语法 Grammar Girl

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(87) / 评论(0) 分类 VOA标准英语2014年(一月)

Rape Allegations Against Actor-Director Nate Parker Resurface AUDIE CORNISH, HOST: The Birth Of A Nation, a new movie based on the story of Nat Turner's slave rebellion in 1831, was poised to be one of the breakout films of the year. The same was sai

发表于:2019-01-17 / 阅读(82) / 评论(0) 分类 2016年NPR美国国家公共电台8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(65) / 评论(0) 分类 白领英语晨读

Eminem 联手 Fun. 主唱 Nate Ruess 单曲《Headlights》MV震撼生猛出炉!这支MV由著名导演斯派克李(Spike Lee)掌镜,《Headlights》回到了当年8英里的取景地底特律拍摄,姆爷典型20012005年说唱风格彻底回归

发表于:2019-02-11 / 阅读(85) / 评论(0) 分类 英文最新流行歌曲

AlphaGo is now the world's No 1 Go player, ending thousands of years of human dominance in the game. AlphaGo现在已经成为世界第一围棋手,结束了几千年的人类在该棋类的统治地位。 According to the latest GoRating, AlphaGo

发表于:2019-02-13 / 阅读(123) / 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(92) / 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(107) / 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(98) / 评论(0) 分类 万物简史

Lee Se-Dol is the world champion of Go, the ancient Chinese board game that is considered the worlds most complex. This week, the South Korean took on an artificially intelligent computer program called AlphaGo created by DeepMind, a British company

发表于:2019-02-17 / 阅读(160) / 评论(0) 分类 阅读空间

Mark one up for man over the machine. The world champion of the ancient Chinese board game of Go has finally found a way to beat Googles AlphaGo computer, after losing three straight games last week. 这是人类战胜机器的时刻,世界围棋冠军

发表于:2019-02-18 / 阅读(94) / 评论(0) 分类 英语新闻

Google's artificial intelligence (AI) program AlphaGo on Tuesday triumphed in its final game against South Korean Go grandmaster Lee Sedol to win the five-game series 4-1. 周四,谷歌人工智能程序AlphaGo在与韩国围棋高手李世石的最后

发表于:2019-02-18 / 阅读(118) / 评论(0) 分类 英语新闻

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(119) / 评论(0) 分类 TED演讲教育篇

Voice 1 Welcome to Spotlight. Im Ryan Geertsma. Voice 2 And Im Robin Basselin. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 That is the sound of reggae

发表于:2019-02-21 / 阅读(102) / 评论(0) 分类 环球英语 Spotlight

Ke Jie says the machine is improving its play every day, which is hard for human beings to achieve. I said before that I could beat AlphaGo easily and now I still believe I have more chances to win the match against AlphaGo. But the thing is AlphaGo

发表于:2019-03-04 / 阅读(144) / 评论(0) 分类 2016CRI中国国际广播电台
学英语单词
a george
Acronychia pedunculata
act of self-help
amado
asklent
athletic type
attractees
avenues
basal pinacoid
bernard montgomery
Betula pubescens
busbar with detachable collar
cadenas
calcium bichromate
California dewberry
cerinum
ceruloplasmins
Challapata
child cry
chloromatous leukemia
crack sealer
debranchers
DEPOLYMN
desqview
disamenities of economic growth
Disasteridae
dramatisations
ebonyi
Exploitation-forest
fault-controlled
ferric trichloride
field tent
flange machinery
gold-pans
heat-stable plant
high-LET
iatrogenic infection
ice-skated
intermittent manufacture
ion exchange cellulose paper
irreparable
isophane insulin suspension (nph)
leaky butter
lengthwise piling
lever locking
levotransposition
lobsteins
loose tube cable attenuation
low-back
lowerings
lyocystidia
Lyuk
macroinferences
mean-root-square error
mesosa kuntzeni
mistion
monarda fistulosas
mooring pattern
multiflue chimney
natural language interface
offset error
original horizontal stratification
oyvind
pea-soup
Petit-Bassam
polygynian
polypedon
polypifers
provinour
put someone to the wall
pyronaridine
rated VA
re-appraisal
retinotopic
rock-filled cribbing
S-expressions
salmeton
sea worm
short pulse laser
sidas
slow flag
sodium phosphate monobasic
Sorbus multijuga
special survey of inert gas system
spiny dogfish
steam blanket
stormbeaten
subaggregate
subcontractable
tail-up on a rope
Temoptol
threatning
thuliums
to a proverb
truncated decision function
ud (oud)
ultrasonic spectroscope
urgent priority
vena renaliss
wedge shaped clip
zastavas
zero-gravity switch