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But the glyptodont wasn't a reptile. So what was it? There is a relative of the glyptodont thats still alive today. It's the armadillo and it's a mammal, the only mammal with this kind of armor in the whole of North America. It may give us some idea

发表于:2018-12-03 / 阅读(82) / 评论(0) 分类 探索与发现2012年

Here's the key part. 接下来是关键的部分。 The solution nearest the wall spins faster than the solution closer to the middle. 离试管壁最近的溶液,要比中间的溶液旋转得更快。 That difference in velocity creates sheer str

发表于:2018-12-18 / 阅读(79) / 评论(0) 分类 TED演讲教育篇

bead, [bi:d] n 珠子,水珠,准星 【例】She wore a string of beads 她挂了一串珠子。 有孔小珠; 念珠 水珠; 水泡 算盘; (枪的)准星 【建】凸圆线脚, 串珠线脚 【机】卷边; 车轮圆缘 焊珠, 焊蚕, 焊缝; 叠

发表于:2018-12-30 / 阅读(76) / 评论(0) 分类 不择手段背单词

When Jack bowed to someone, he always did it at lightening speed. You shouldn't wait any longer after he has had his head nod. So he was blamed for no manners. Then some warmhearted men taught him,

发表于:2019-01-03 / 阅读(200) / 评论(0) 分类 英汉幽默故事选读

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. In theory, scientists could learn a lot about our health by testing tiny amounts of bodily fluidsa drop of blood, a tear, a bead of sweat. But somethin

发表于:2019-01-08 / 阅读(108) / 评论(0) 分类 Scientific American(十一)月

VOICE ONE: Welcome to THIS IS AMERICA in VOA Special English. I'm Steve Ember. VOICE TWO: And I'm Barbara Klein. Beadwork has a long history as an art form practiced by American Indians and other cultures around the world. Today millions of people e

发表于:2019-01-09 / 阅读(86) / 评论(0) 分类 VOA慢速英语2009年(五)月

追寻彩虹 After the rain of the sky, quiet, fragrant, with a delighted Jiejing vegetation. In the distance, I do not know what the earth a place, saw there a beautiful rainbow painted a beautiful arch, dazzling in the thin air. A b

发表于:2019-01-11 / 阅读(114) / 评论(0) 分类 阅读空间

1. The Bush administration and Congress are working through the weekend to hammer out a Wall Street rescue plan. President Bush is asking lawmakers to let the government buy 700 billion dollars in bad mortgages from US financial institutions for the

发表于:2019-01-11 / 阅读(160) / 评论(0) 分类 美联社新闻一分钟2008年(九)月

This is AP News Minute. Investigators in Illinois say a police officer whose fatal shooting triggered a massive manhunt committed suicide. Police say the officer carefully staged his death because he was about to be exposed as a thief. The British go

发表于:2019-01-11 / 阅读(123) / 评论(0) 分类 美联社新闻一分钟2015(十一)月

US Bead Parties Boost Ugandan Women Its party time for Madison Blandford and three dozen of her girlfriends. The 11-year-old invited her classmates and neighbors to see - and buy - beaded jewelry made by women in Uganda. My grandma got me a bracelet,

发表于:2019-01-13 / 阅读(101) / 评论(0) 分类 VOA标准英语2012年(七月)

Students Fuse Art from Shattered Glass BETHESDA, MARYLAND When Lynda Slayen first discovered fused glass about 10 years ago, she immediately fell in love with the technique. Ive always loved glass. I collect glass. I have a lot of antique glassand th

发表于:2019-01-14 / 阅读(82) / 评论(0) 分类 VOA标准英语2014年(一月)

What is mother for? M is for the million things she gave me. O menas only that she 's growing old. T is for the tears she shed to save me. H is for her heart of purest gold. E is for her eyes ,with the love-light shining. R means right ,and right sh

发表于:2019-01-17 / 阅读(87) / 评论(0) 分类 白领英语晨读

Oh, perfect, perfect, perfect. Now were seeing the fireball come in, its brighter than the Sun and then, Kapow, it hits the surface. Jeez! This whole region, downrange, would have been incinerated. It would have been incinerated just by this plasma,

发表于:2019-01-23 / 阅读(70) / 评论(0) 分类 探索与发现2014年

The Donkey and the Statue A donkey was once chosen to carry a holy statue through the town.Crowds of people came from all over the countryside to see the procession.They lined both sides of the street,pushing and jostling to get nearer to the f

发表于:2019-01-28 / 阅读(109) / 评论(0) 分类 趣味英语

杏眼:almond-shaped 小而亮的眼睛:beadlike 美丽的:beautiful 大的:big/large 明亮的:bright 眼珠突出的:bulging 离的很近的:close-set 深陷的:deep-socketed/deep-sunken 水灵灵

发表于:2019-02-04 / 阅读(85) / 评论(0) 分类 英文语法词汇

This is AP News Minute. 1. In a stunning move, house majority leader Kevin McCarthy has withdrawn his candidacy for speaker, and the election for the position has been postponed. Republican lawmaker said McCarthy told colleagues at the start of the G

发表于:2019-02-11 / 阅读(129) / 评论(0) 分类 美联社新闻一分钟2015(十)月

What Would You Ask Her? 你会向她提什么问题? One question has intrigued art lovers around the world for generations: what is the secret behind the Mona Lisas enigmatic smile? Well now they have the chance to ask her directly, thanks to a new

发表于:2019-02-13 / 阅读(75) / 评论(0) 分类 英语听力精选进阶版

A: Ha-ha, it's really a good news. A: 哈哈,真是个好消息。 B: What makes you so happy? B: 什么事情让你那么高兴啊? A: Jay Chou will hold a live concert in Beijing next month. A: 周杰伦下个月将会在北京举办一场现场音

发表于:2019-02-15 / 阅读(135) / 评论(0) 分类 英语脱口秀之流行时尚

CHANGSHA, July 5 (Xinhua) -- A section of a highway running near a major river in central China's Hunan Province caved in early Thursday, engulfing a passing vehicle and killing at least one person aboard. The cave-in, near the Poly International Pla

发表于:2019-02-17 / 阅读(113) / 评论(0) 分类 英语新闻

The exhibitions organiser Wang Hui spent two years preparing the collection with a team of over 400 digital artists in South Korea, at a cost of around 50m yuan. He says, What's special about this is that it's the first time 3D technology, holographi

发表于:2019-02-23 / 阅读(61) / 评论(0) 分类 英语时差8,16
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