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From NPR News in Washington, I'm Lakshmi Singh. NATO is confirming the death of another soldier in Afghanistan, bringing the number of fatalities to 13 since an anti-Taliban offensive was launched in Marjah, Afghanistan over a week ago. General David
2010年NPR美国国家公共电台2月
They are made up of dots and lines or abstract shapes and patterns. Nothing in the natural world of the prehistoric artist would have looked like this, or this. And, very often, these patterns are rep
人、艺术、世界
What if we go back 2,000 years? This is the image of a horse from classical antiquity. It was made to decorate a Roman household, about one hundred years before Christ. And clearly the artists here ha
人、艺术、世界
So what happened? How did imagery come to be used as a political tool? Well it's a process that happens at different times in various parts of the world. But in one of those parts, Britain, archeologi
说服的艺术
What this individual had discovered was something that we today take for granted. Art, as personal adornment, enhances your status, it lifts you above your peers and our king was the first leader in B
说服的艺术
The rotting corpse of a juvenile Tyrannosaurus Rex laid buried beneath mud carried in from some prehistoric river. 幼年雷克斯暴龙腐烂的尸体被史前河流冲走并且埋在泥里。 The hypothesis is that two T-Rexes were in a fight and o
侏罗纪搏击俱乐部
T-Rex, by using cutting-edge technology, some of its fossilized secrets have been scientifically decoded. 霸王龙，通过前沿科技，其化石里的一些秘密已经被科学界解开了。 It had eagle-eye vision, could smell prey from 3 mile
侏罗纪搏击俱乐部
In some ways, perhaps modern earth moving machinery is a better analogy for the type of power they have. 在一定程度上，用现代土方机械可能更能形容它们所有的力量。 If that's not enough of a deterrent and you're still coming
侏罗纪搏击俱乐部
As investigators studied the large serrated teeth of the giant shark, they discovered the massive power of its bite - a force of 20 tons. 在调查者研究这些巨鲨的大型锯齿状牙齿时，他们发现了它巨大的咬合力可达二十吨。
侏罗纪搏击俱乐部
They moved with their front legs more oriented inward instead of like this, like we see in bears today, and that would have given them a more efficient gate. 当它们进行移动时，前腿更向内靠，而不是像我们如今看到的熊类这样，
侏罗纪搏击俱乐部
With food scarce, both dinosaurs must also conserve energy. 因为食物匮乏，两头恐龙都必须要保存体能。 The slow moving Gastonia could go a week without eating. 缓慢移动的加斯顿龙一周不吃东西没有问题。 The faster
侏罗纪搏击俱乐部
The Utahraptor had relatively thin arms, so it couldn't simply flip the heavy Gastonia over to get to its underbelly. 犹他盗龙的前肢比较细，所以它没法把沉重的加斯顿龙翻过来直击它的下腹部。 In nature today, predatory
侏罗纪搏击俱乐部
Charms and Symbols Cornerstone 1 Even buildings made of steel and glass usually have a cornerstone, often engraved with the date construction began. It is a talisman 2 intended to bring luck not only
英语沙龙2004全年合辑上
But people didn't yet know how to build houses. 但是人们当时还不知道如何建造房屋。 Not a pleasant thought, since at that time it was often intensely cold at certain periods far colder than today. 一想到这点令人很不愉快，因
世界小史
Now, an ambitious new idea began to take hold in Lewis Williams' mind because he was aware that there were other rock paintings which were very similar to those painted by the San. These were many tho
人、艺术、世界
Here, for the first time, we've got a theory, which seems to solve many of the puzzles that've mystified experts in the past. It's a theory based not just on an investigation of the cave art itself, b
人、艺术、世界
Names by Katherine Bilsborough Shakespeare told us that a rose, by any other name, would smell as sweet. But is that true? Are names important? Are you happy with the name that you were given as a baby? And how do you choose a name for your own child
英语音频杂志
AS IT IS 2015-12-16 Study: Humans Sleep Less, Better Than Other Animals 比动物睡眠少而质量更高是人类进化结果 Humans need less sleep than other mammals, yet their slumber is more efficient, said researchers at Duke University in Nort
2015年VOA慢速英语(十二)月
导读:国家语言资源监测与研究中心、商务印书馆、人民网主，于11月末在网上发起投票，选择年度热词。此举始于2006年，旨在用一个字或词语描述中国和世界。反映社会变迁及中国人眼中的多
英文语法词汇
He ultimately hits upon this idea 他最终认为 that computer technology can be the source of transcendence, 电脑技术将成为历史性的革命 that it can transform our lives, 我们的生活将彻底为之改观 that it can help us live on a
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