光导纤维学

They Did It With Mirrors!

They Did It With Mirrors! You can’t stand in front of the paintings of the old masters and not wonder, how did 1) Frans Hals make that lace seem so real? How did 2) Van Dyck make his armor so gleami

发表于:2018-11-28 / 阅读(439) / 评论(0)

疯狂英语2003年

英文音韵童谣小书 06 Brrrr！Brown Bear

图片1 图片2 图片3 图片4 图片5

发表于:2018-12-03 / 阅读(397) / 评论(0)

20本英文音韵童谣小书（文本+音频）

Brexit Vote Is Too Close to Call

AS IT IS 2016-06-22 Brexit Vote Is Too Close to Call Opinion studies in Britain show almost equal support for staying and remaining in the European Union ahead of a vote on the issue Thursday. British Prime Minister David Cameron made an appeal Tuesd

发表于:2018-12-08 / 阅读(339) / 评论(0)

2016年VOA慢速英语(六)月

Kevin Breel:一个抑郁喜剧演员的自白

凯文布莱尔并不像一个抑郁的小孩：他是篮球队队长，参加各种派对，幽默并且自信。但它讲述的是有一个晚上他认识到拯救他自己的人生，他需要的只是说四个字。

发表于:2018-12-09 / 阅读(392) / 评论(0)

TED演讲集:人生经验与告白

VOA标准英语2011--Libyan Rebels Move on Gadhafi's Hometown

Libyan opposition forces are fighting for control of Sirte, the hometown of their avowed enemy, Libyan leader Moammar Gadhafi. The rebels have taken swift advantage of a U.N.-backed military campaign that is now under NATO command. Government forces

发表于:2018-12-16 / 阅读(314) / 评论(0)

VOA标准英语2011年(三月)

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(432) / 评论(0)

美国习惯用语

走进剑桥大学第8期:牛顿的苹果树

Newtons Apple Tree 牛顿的苹果树 Newton was an English physicist and mathmatician,and was the greatest scientist in his era. 牛顿是一位英国物理学家和数学家，也是他那个时代最卓越的科学家之一。 Isaac Newton was bor

发表于:2018-12-18 / 阅读(293) / 评论(0)

走进剑桥大学

Gadhafi Says Other Nations Should Follow Libya's Example

Roger Wilkison Libyan leader Moammar Gadhafi has hailed his first visit to Europe in 15 years as historic and followed up his renunciation of weapons of mass destruction with a pledge to work for worl

发表于:2019-01-04 / 阅读(481) / 评论(0)

VOA2004（上）--各类新闻

英语新词：英国的“脱欧焦虑” Brexit anxiety

英国脱欧迎来戏剧性变化。当地时间3日，英国高等法院裁定，政府在正式启动脱欧程序前需经议会批准。英国政府对这一裁定表示失望，并第一时间表示将上诉至最高法院。不少公司在英国的

发表于:2019-01-08 / 阅读(540) / 评论(0)

英文语法词汇

VOA标准英语2008年-Gadhafi Seeks Revenge Following Son's Arrest in

Tensions between Switzerland and Libya are continuing to escalate as Libyan leader Moammar Gadhafi enacts a number of retaliatory measures to protest the recent arrest of his son and wife in Geneva. The son, Hannibal Gadhafi and his wife were arrest

发表于:2019-01-13 / 阅读(353) / 评论(0)

VOA标准英语2008年（七月）

voa标准英语2008年-Gadhafi's Son Meets Senior US Officials

A son of Libyan leader Moammar Gadhafi met senior Bush administration officials Tuesday in another sign of improved U.S.-Libyan relations. Saif al-Islam Gadhafi sees Secretary of State Condoleezza Rice Thursday. VOA's David Gollust reports from the

发表于:2019-01-13 / 阅读(373) / 评论(0)

VOA标准英语2008年(十一月)

VOA标准英语2009-Libya's Gadhafi Lashes Out at US

Libyan leader Muammar Gadhafi has lashed out at the United States by likening the 1986 U.S. Strikes on Libya to Osama bin Laden's terror attacks on the United States in 2001. He was speaking Thursday in Rome, where he is on a three-day official visi

发表于:2019-01-13 / 阅读(444) / 评论(0)

VOA标准英语2009年(六月)

VOA标准英语2009年-Libyan Leader Gadhafi Presides Over Mauritania

Libyan head of state Moammar Gadhafi is in Mauritania, where he opened multi-lateral talks aimed at resolving the months-old political crisis there. Libya's leader Moammar Gadhafi (file photo) In his capacity as current head of the African Union, Li

发表于:2019-01-13 / 阅读(312) / 评论(0)

VOA标准英语2009年(三月)

英语听力：自然百科穿越银河系的旅行 Through Milky Way—14

Its a stunning location, but its also mysterious. These stars are not just close together. They are on the move at enormous speeds. Going to the heart of a galaxy might not be the similar to going to an amusement park. The rides are some similar to h

发表于:2019-01-22 / 阅读(402) / 评论(0)

自然百科2011年

Chinese delegation says BRICS summit a success

NEW DELHI, March 29 (Xinhua) -- Leaders of the five-nation BRICS bloc have reached important consensus in a just-concluded summit here, the Chinese delegation said Thursday. The summit is a success as it has again showcased the cooperative partnershi

发表于:2019-01-31 / 阅读(297) / 评论(0)

英语新闻

VOA常速英语2007年-World Loses Many Well-Known International Figur

By Barry Unger Washington 14 December 2007 The year 2007 saw the passing of many well-known international figures who left a lasting impression. VOA's Barry Unger takes a look back at some of these people. Jim Bertel narrates. Former Russian Presiden

发表于:2019-02-04 / 阅读(326) / 评论(0)

VOA常速英语2007年（十二月）

可以调焦的眼镜?

可以调焦的眼镜? They may look like an ordinary pair of spectacles, but these glasses are at the forefront of a revolution in eyewear. 它们看起来像普通的眼镜，但是是眼镜改革的最前沿。 Part of a new line of electronic eye

发表于:2019-02-07 / 阅读(304) / 评论(0)

实用英语

BRICS Nations Inch Toward Development Bank

Leaders from some of the world's largest developing economies -- Brazil, Russia, India, China, and South Africa, the so-called BRICS -- called Thursday for a more representative international financial structure. Wrapping up a summit Thursday in New

发表于:2019-02-07 / 阅读(355) / 评论(0)

英语新闻

BRICS nations keen to team up on new energy

SANYA, Hainan, Dec. 4 (Xinhua) -- The five BRICS nations intend to focus and work together on developing alternative energy sources. When Bu Xiaolin, vice governor of China's coal-rich Inner Mongolia autonomous region, spoke over the weekend in front

发表于:2019-02-17 / 阅读(297) / 评论(0)

英语新闻

BRICS health ministers warm up

GENEVA, May 17 (Xinhua) -- Health Ministers from Brazil, Russia, India, China and South Africa met here on Tuesday, to prepare for the BRICS Health Ministerial Meeting which is to be held in Beijing on July 11, 2011. The preparatory discussion was co

发表于:2019-02-18 / 阅读(272) / 评论(0)

英语新闻

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alternative inheritance

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