Research shows that the climate in western Tibet has been steadily changing over the past millenium, and that man has been on the losing end of an age old battle with nature. Areas that were once moist and relatively lush are now dry and have become

发表于:2019-01-22 / 阅读(79) / 评论(0)

自然百科2013年

英语听力：自然百科古格：消失的西藏王朝—25

Cavalry scales passed down for generations from father to son, each the proud bearer of the heritage of his warrior ancestors. At a secret prayer site, Tsering Gyalpo, a native of these parts, makes his offering to his ancestors, and the divine. This

发表于:2019-01-22 / 阅读(79) / 评论(0)

自然百科2013年

英语听力：自然百科鲨鱼湾的海豚—11

The next day, Janet's back on the water, looking for them both. That's probably India. It's a relief to see India is safe and well. But Janet is in full surprise. Instead of hanging out with the other young boys as most do, he's with a notorious fema

发表于:2019-01-22 / 阅读(56) / 评论(0)

自然百科2013年

英语听力：自然百科鲨鱼湾的海豚—13

发表于:2019-01-22 / 阅读(65) / 评论(0)

自然百科2013年

英语听力：自然百科国家地理：钻石：黑暗的一面—21

Drilling almost a kilometer down into the earths crust, the rocks they brought to the surface have been lying undisturbed for some 3 billion years. The cores were boxed and sent back to Canada for analysis. It took 3 months to get the results. Sure e

发表于:2019-01-22 / 阅读(61) / 评论(0)

自然百科2013年

英语听力：自然百科国家地理：钻石：黑暗的一面—20

The supples then have to be tested for the indicated minerals that often form a long side of diamonds, but that can take up to 3 months. The reds are what's gone was gone with the pideral Okay conclusive. In conclusive results are not what the Americ

发表于:2019-01-22 / 阅读(59) / 评论(0)

自然百科2013年

英语听力：自然百科国家地理：钻石：黑暗的一面—18

发表于:2019-01-22 / 阅读(51) / 评论(0)

自然百科2013年

英语听力：自然百科国家地理：钻石：黑暗的一面—17

发表于:2019-01-22 / 阅读(51) / 评论(0)

自然百科2013年

英语听力：自然百科国家地理：钻石：黑暗的一面—16

发表于:2019-01-22 / 阅读(55) / 评论(0)

自然百科2013年

英语听力：自然百科国家地理：钻石：黑暗的一面—15

It's true I promise,I said it's on the way. That's perfectly true. But never ever I get one single contact or supplying weapon. His trial made headlines around the world,for what was the first successful prosecution for the smuggle of bloeddiament. d

发表于:2019-01-22 / 阅读(63) / 评论(0)

自然百科2013年

英语听力：自然百科国家地理：钻石：黑暗的一面—14

-We solved the case, but we couldn't recover the diamonds. To this day, the gems stolen in the world's greatest ever diamond heist is still on the c*, a staggering hundred-million-dollar mystery. They may be sold in the shadowy corners of the interna

发表于:2019-01-22 / 阅读(131) / 评论(0)

自然百科2013年

英语听力：自然百科国家地理：钻石：黑暗的一面—13

To get to the captial Monrovia, he enlisted help of his tennis partner, Liberia's notorious security chief, General Benjamin Yalta.-He said the ship will be there in two hours. And the moment I heard that ship, going alarmed for it. For me, it was he

发表于:2019-01-22 / 阅读(73) / 评论(0)

自然百科2013年

英语听力：自然百科国家地理：钻石：黑暗的一面—12

The smuggler began to suspect he was being set up. He was vulnerable and carrying more than a quarter of a million dollars. It would be all too easy for blood-thirsty rebels to take his money and his life. -Is he going to kill me, my holy God? Fear f

发表于:2019-01-22 / 阅读(62) / 评论(0)

自然百科2013年

英语听力：自然百科国家地理：钻石：黑暗的一面—19

发表于:2019-01-22 / 阅读(55) / 评论(0)

自然百科2013年

最新学习文章

热门学习文章

热门标签

英语听力 VOA标准英语 VOA 英语歌曲口语听力提高听力材料听力教程英语学习 NPR 英语口语 VOA慢速英语美国国家电台儿童英语 VOA英语小学英语 cnn VOA常速英语标准英语英文歌曲听电影学英语英语单词英文电影慢速英语 CRI 美联社新闻美国有线新闻加州分级澳洲新闻流行歌曲常速英语 ABC新闻快递疯狂英语英语读物听力棚车少年经济学人英语词汇商务英语 VOA双语新闻 BBC 中国电台大学英语 Treasures 加州语文 BBC英语英语听力网站 VOA英语教学词汇万花筒 SSS VOA英语听力 AP 新概念分级英语英语广播听力精选英语播客英文绘本 TED演讲赖世雄英语MP3 CCTV9英语新闻 lesson 英语新闻初中英语学英语英语语法历史上的今天英文广播剧英语游戏原版英语小说英语有声读物书虫英语牛津英语读物访谈录新闻一分钟考研英语英语每日在线听新闻 Us 新概念英语地道英语单词第二册自然百科高中英语 sports 实用英语 MP3听力辛沛沛 ESL英语第一册英语每日一句 unit 新东方 GRE 每日一词 BBC听力

学英语单词

acidic industrial waste

agathis robustas

aggregate social capital

Amygdalus persica

angulus scapulae

Annual Transit Policy

antialkaline

benecke

biological minima temperature

chemical homogeneity

cobalt carbide