[化] α-溴丁酸乙酯

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(198) / 评论(0)

2014年VOA慢速英语(五)月

美国习惯用语:593 bric-a-brac

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(220) / 评论(0)

美国习惯用语

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(153) / 评论(0)

VOA双语新闻 2014年1月

英语语法：173 Funny Homophones

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(245) / 评论(0)

英语语法 Grammar Girl

VOA标准英语2009年-Syria Offers to Mediate With Iran

Syrian President Bashar al-Assad is proposing to mediate between the West and Iran, telling an Italian newspaper that he's prepared to act as a go-between to improve relations that have been further strained over Iran's nuclear program. Syrian Presi

发表于:2019-01-13 / 阅读(158) / 评论(0)

VOA标准英语2009年(三月)

VOA标准英语2010年-Omo River Dams in Ethiopia: Blessing o

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(201) / 评论(0)

VOA标准英语2010年(九)月

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(160) / 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(127) / 评论(0)

白领英语晨读

柯洁:阿尔法狗终将击败人类

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:2019-02-05 / 阅读(149) / 评论(0)

英语新闻

AlphaGo围棋排名超越柯洁成为世界第一棋手

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(179) / 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(148) / 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(165) / 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(172) / 评论(0)

万物简史

AlphaGo背后的人脑

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(225) / 评论(0)

阅读空间

李世石对弈AlphaGo扳回一局

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(157) / 评论(0)

英语新闻

AlphaGo击败李世石被授名誉九段

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(170) / 评论(0)

英语新闻

李世石聊围棋人机大战

Reflecting on his third consecutive loss, Lee Sedol admits he is under a lot of pressure after losing the first two games. Though I have a lot of experience in Go I have never felt before such severe pressure as I do now, and I suppose my abilities w

发表于:2019-02-18 / 阅读(169) / 评论(0)

英语新闻

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(187) / 评论(0)

TED演讲教育篇

英语听力—环球英语 1112 Alpha Boys School

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(179) / 评论(0)

环球英语 Spotlight

2016年CRI Chinese Top Go Players: AlphaGo Can Eventually Beat All Human Players

发表于:2019-03-04 / 阅读(209) / 评论(0)

2016CRI中国国际广播电台

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学英语单词

Argentinian hemorrhagic fever

autopulse

bismuth hydrogen sulfate

block control word

blyton

buck or boost