单词:4-ethyl-2-picoline
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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
越来越多的人居住在异国他乡。有三到四个身世来源的作家皮柯.耶尔(Pico Iyer) 思索着家的意义,旅行的乐趣和静止的平和。
EXPLORATIONS - Children's Press Line By Karen Leggett Broadcast: Wednesday, October 27, 2004 (MUSIC) VOICE ONE: This is Faith Lapidus. VOICE TWO: And this is Steve Ember with Explorations in VOA Speci
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
Voice 1 Welcome to Spotlight. I'm Liz Waid. Voice 2 And I'm Mike Procter. 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 The sounds of traffic! You can h
Now, its time for the VOA Learning English program, Words and Their Stories. On this show, we talk about common, expressions in American English. Today, we will talk about the word line. Line is a simple, four-letter word, but it has many meanings, m
我听之我见: 西方评论界认为,若再找出一座石山,将美国现代音乐界的四位开国元勋头像雕刻上去,那么Johnny Cash必是其中之一。Johnny Cash是影响美国近代乡村、流行、摇滚与民谣界最重要的创作歌手之一,他以浑厚而深沉的 Lyrics I walk the line By Johnny Cash I k
SCIENCE REPORT - January 2, 2002: New Cold Drug By Nancy Steinbach This is the VOA Special English Science Report. American researchers say they have developed the first drug that can effectively trea
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
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
Vieques Controversy May Persist After the Bombing Ends Michael Bowman Miami 18 Jun 2001 22:05 UTC Protests continued Monday on the Puerto Rican island of Vieques, days after the Bush administration an
听多了流行的歌曲,今天给大家来一首老歌经典,希望大家会喜欢。 如果大家有什么好歌,也可以给我留言或是在评论栏里给大家推荐。 I walk the line By Johnny Cash I keep a close watch on this heart of
Japanese designer Pico has combined her love of cats and handbags to create highly realistic purses. The bags are shaped like kitties with whiskersand tails. Each cat-bag is priced at about $500 to $700, but buyers dont seem to mind the steep pricing
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
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
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
Lana Del Rey 微电影《Tropico》!电影艺术赋予了这个倾倒众生的女人一个展示灵魂的机会,这是你无法在平时见到的美丽躯体,意味深长的镜头切换唤醒了我们对于神秘之美的好奇,玄妙的音乐如
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
Line In.... Line Down Line in... line down... line in* Line in... line down... line in... line down Line in... line down... line in... line down Line in and save me Myself can drug me down Line in, forever blissful Continue to line down Line in... li
Helen: This is Real English from BBC Learning English. Im Helen. Zoe: 大家好,我是刘佳。Helen, 今天咱们要学的是什么最新表达呢? Helen: Todays new expression is bottom line. Zoe: Bottom line. Helen, 这个短语说的是什么啊? Helen: Well, bottom line is