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侏罗纪搏击俱乐部第154期:牙齿适合用来切肉

It was a species of Tyrannosaur. 这是暴龙的一种。 That suggested to us, well, maybe these Tyrannosaur teeth are in fact from animals that are trampling the bodies of these things as they eat them. 那就表明，也许这些暴龙牙齿是它们

发表于:2018-12-28 / 阅读(86) / 评论(0)

侏罗纪搏击俱乐部

侏罗纪搏击俱乐部第114期:阿尔伯特龙是原始的暴龙

These were big but really fast hunters. They were as bad as it got for a while. 这些巨大但速度很快的猎手。有一段时间它们要多坏有多坏。 Albertosaurus would have been a very fearsome predator. 阿尔伯特龙会是非常可怕的

发表于:2018-12-28 / 阅读(74) / 评论(0)

侏罗纪搏击俱乐部

侏罗纪搏击俱乐部第113期:盛夏巅峰遭遇异常严重的旱灾

He's got a big, thick bull-dog head and it's perfectly designed for grasping prey and crushing it. 它有着牛头犬一样又大又壮的脑袋，其设计非常适合抓住并且咬碎猎物。 His teeth are also designed to take a lot more pressur

发表于:2018-12-28 / 阅读(75) / 评论(0)

侏罗纪搏击俱乐部

侏罗纪搏击俱乐部第107期:地球上最恐怖的恐龙

Over the next 90 million years, a new era called the Cretaceous period dawned. 在接下来的九千万年里，开始了一个叫做白垩纪的新时期。 Broader-leaf plants that could tolerate seasonal weather changes covered the land. 能够忍受

发表于:2018-12-28 / 阅读(141) / 评论(0)

侏罗纪搏击俱乐部

万花筒 2010-01-30&01-31 iPad真的那么牛？

So after months of rumors and speculation, the wraps have finally come off Apple's latest big idea. At a launch in San Francisco, the iPad was fanfared with typical Apple hype. It's unbelievably great, way better than a laptop, way better than a smar

发表于:2019-01-07 / 阅读(105) / 评论(0)

万花筒2010年

美国国家公共电台 NPR How Do Eggs Get Their Shapes? Scientists Think They've Cracked It

KELLY MCEVERS, HOST: One of nature's most efficient life support systems is the egg. And over millions of years, eggs have taken on lots of different shapes, especially among birds. Biologists have been trying to figure out for a long time why that i

发表于:2019-01-17 / 阅读(75) / 评论(0)

2017年NPR美国国家公共电台6月

VOA标准英语2011--Innovative Electric Aircraft Win Green F

Innovative Electric Aircraft Win Green Flight Challenge We often hear about hybrid cars, which run in part on electricity and can travel about 20 kilometers on a liter of fuel. Engineers are also experimenting with another mode of electric transporta

发表于:2019-01-30 / 阅读(109) / 评论(0)

VOA标准英语2011年(十月)

时代周刊盘点年度十大发明：这才叫终极创造力

每年，《时代周刊》都选出让世界更美好、更智能、更有趣的发明。今年的也能让你大吃一惊哦！ 1.The Levitating Lightbulb 1.悬浮灯泡 Since he was a child, Simon Morris has been obsessed with making objects float

发表于:2019-02-01 / 阅读(148) / 评论(0)

阅读空间

传闻iPhone8将配置5.8英寸屏幕价格历史最高

A new report has revealed that Apple plans to launch three handsets this year - two will be updates of the iPhone 7 family and the third is the 10th-anniversary handset -- iPhone 8. 一份最新报告显示，苹果公司计划今年推出3部手机-

发表于:2019-02-07 / 阅读(71) / 评论(0)

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acceptance of an order at below-cost price