[化] 四乙铅

VOA慢速英语2010年-Snowflakes and Sugarplum Fairies? Yep,

FAITH LAPIDUS: And Im Faith Lapidus with EXPLORATIONS in VOA Special English. Today we enter a world of Christmas magic, snowflakes, sweets and sugarplum fairies. The Nutcracker is one of the most popular ballets in the world. It is also an important

发表于:2018-12-01 / 阅读(192) / 评论(0)

2010年VOA慢速英语(十二)月

VOA慢速英语2014 科学家们寻找新的方法来对付蚊子

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(147) / 评论(0)

2014年VOA慢速英语(五)月

VOA双语新闻：3、美科学家研发新一代驱蚊剂

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(100) / 评论(0)

VOA双语新闻 2014年1月

SSS 2012-01-24

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(131) / 评论(0)

Scientific American(一)月

英语儿歌274首第166期:Plum Blossoms

歌词如下： Sweet plum blossoms fine and whate. Did you open in the night? Yestoday the tree was bare. Now it's covered everywhere! One and two and three and four. I can't count how many more!

发表于:2018-12-31 / 阅读(113) / 评论(0)

英语儿歌274首

专业术语—中草药成分英汉对照词汇T1

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(116) / 评论(0)

医务英语

实用口语：这些水果的“内涵”你需要了解

本文写到四种常见的水果，你可能也很爱吃。你对它们的了解足够多吗?快来多了解一些它们在英语中的内涵吧! 1. grape 葡萄仲夏及初秋大量上市的水果，品种众多。含多种糖类，维生素等营养

发表于:2019-01-08 / 阅读(80) / 评论(0)

英语口语

Saldado's hat trick gives Valencia 3-0 win at BATE

Saldado's hat trick gives Valencia 3-0 win at BATE MINSK, Oct. 23 (Xinhua) -- Roberto Soldado's hat trick led Valencia to a 3-0 win at BATE Borisov in a European Champions League group match on Tuesday night in Minsk. The victory kept alive the Spani

发表于:2019-01-11 / 阅读(92) / 评论(0)

英语新闻

VOA常速英语2014--Promising Mosquito Repellent Announced 美科学家研发新一代驱蚊剂

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(99) / 评论(0)

VOA标准英语2014年(一月)

白领英语晨读-011 To Attract Police　吸引警察

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(79) / 评论(0)

白领英语晨读

DEVELOPMENT REPORT - Plumpy'nut Aids Fight Against Hunger

DEVELOPMENT REPORT - Plumpy'nut Aids Fight Against Hunger By Jill Moss Broadcast: Monday, April 25, 2005 I'm Gwen Outen with the VOA Special English Development Report. Nutriset is a food company in F

发表于:2019-01-30 / 阅读(141) / 评论(0)

农业与发展

BATE holds Milan to 1-1 draw

MINSK, Nov. 1 (Xinhua) -- AC Milan were held to a 1-1 draw by a spirited BATE Borisov in Champions League Group H on Tuesday in Minsk. Milan's striker Zlatan Ibrahimovic put the visitors ahead in the 22nd minute. BATE was enjoying several promising c

发表于:2019-02-05 / 阅读(131) / 评论(0)

英语新闻

万物简史第227期:把铅撵出去(16)

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(103) / 评论(0)

万物简史

万物简史第225期:把铅撵出去(14)

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(117) / 评论(0)

万物简史

万物简史第213期:把铅撵出去(2)

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(113) / 评论(0)

万物简史

万物简史第212期:把铅撵出去(1)

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(137) / 评论(0)

万物简史

TED演讲获奖青少年,科技在行动(1)

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(133) / 评论(0)

TED演讲教育篇

【大家说英语】看圣诞秀

Lesson 7 Entertainment 第七课娱乐 December 15 12月15日 Let's Go to a Christmas Show! 看圣诞秀！ Read it! 读读看！ Rob is talking to a ballet dancer. 罗柏正和一位芭蕾舞者说话， Her name is Tina Twirl. 她是缇娜．旋转小

发表于:2019-02-23 / 阅读(147) / 评论(0)

大家说英语

英语听书《白鲸记》第303期

Closing the door upon the landlady, I endeavored to prevail upon Queequeg to take a chair; but in vain. 老板娘走后,我关上了门,试图说服魁魁格坐到椅子上来;但是,白费。 There he sat; and all he could do-for all my polite arts

发表于:2019-02-25 / 阅读(96) / 评论(0)

白鲸记

不可错过的中国四大古曲

传统意义上的古曲是指中国古代流传下来的，有较高知名度的乐曲。这些古曲大多属于器乐曲，而且大都出于诗人之手创作而成。在中华5000多年的文化长河中，古曲(古诗词歌曲)是中华民族的

发表于:2019-02-26 / 阅读(141) / 评论(0)

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altitude above sea level