单词：hemihedra
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This is Scientific Americans Sixty Seconds Science. Im Steve Mirsky. Got a minute? Youve no doubt heard that grapefruit juice can greatly increase the effects of some drugs. Even to a dangerous degree. Pharmacologist David Bailey made that discovery
Scientific American(八)月
[00:02.99]3 Listen and order. [00:07.30]You will hear Miss Wang give instructions on [00:10.67]how to use a Bunsen burner. [00:14.04]Listen to the instructions [00:15.94]and number the pictures in the correct order. [00:20.12]Number the steps 1-8. [0
外研社新标准初中英语九年级
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英文魔法师字源大挪移
By Nick Wadhams Nairobi 10 July 2007 Sudan's government has missed a deadline to withdraw all its troops from southern Sudan as called for by a landmark peace deal. As Nick Wadhams reports from our East Africa bureau in Nairobi, the news could be a b
2007年VOA标准英语（七月）
Career and Fans 'Rise Up' for Singer Andra Day Andra Day's life changed when Stevie Wonder called her on the telephone. The music superstar asked Day if he could work with her. That was almost six years ago. Stevie Wonder had heard about the singer f
2016年VOA慢速英语(二)月
Outgoing Israeli Prime Minister Ehud Olmert says Israel will have to give up virtually all of the land it captured in the 1967 Arab-Israeli War if it wants peace with the Palestinians. Mr. Olmert, now serving as interim prime minister, made his rema
VOA标准英语2008年（九月）
The U.S. Defense Department says it wants to turn over security responsibility to Iraqi forces as quickly as possible, but that the timing should be based on conditions. A spokesman repeated the position Tuesday in response to a statement by Iraq's
VOA标准英语2008年（八月）
MICHEL MARTIN, HOST: The nation's third president, Thomas Jefferson, is revered as a Founding Father of the nation, principal author of the Declaration of Independence, a scholar and inventor, and he owned 607 human beings - 400 of them lived at his
2018年NPR美国国家公共电台6月
Disease 疾病 anemia, anaemia 贫血 angina pectoris 心绞痛 appendicitis 阑尾炎 arthritis 关节炎 bronchitis 支气管炎 cancer 癌 catarrh 卡他，粘膜炎 chicken pox, varicella 水痘 c
英文语法词汇
AGRICULTURE REPORT – July 30, 2002: Chemicals on Organic Food By George Grow (Photo -Scott Bauer) This is the VOA Special English AGRICULTURE REPORT. Farmers who grow organic food do not use chemica
农业与发展
By Steve Herman Kathmandu, Nepal 24 October 2007 More than a year after an interim coalition took control of Nepal's government from the unpopular King Gyanendra, politicians are debating the future of the monarchy, and the country's development. VO
2007年VOA常速英语（十月）
By VOA News 16 April 2008 U.S. Defense Secretary Robert Gates says the United States needs to overhaul its approach to national security. Gates told U.S. lawmakers Tuesday there needs to be what he called a fairly dramatic change to better protect th
VOA常速英语2008年（四月）
Indians have joyously greeted the news of the country's first-ever Olympic gold medal in an individual event. The milestone at the Olympic Games in Beijing has resulted in an outpouring of national pride. Anjana Pasricha reports from New Delhi that
VOA标准英语2008年（八月）
与数字有关的英语词根总结 milli-【千分之一】例：milliampere（毫安）=milli（千）+ampere（安培） centi【百分之一】例：centimeter（厘米）=centi（百分之一）+meter（米） deci【十分之一】例：decibe
英语学习方法
Disease 疾病 anemia, anaemia 贫血 angina pectoris 心绞痛 appendicitis 阑尾炎 arthritis 关节炎 bronchitis 支气管炎 cancer 癌 catarrh 卡他,粘膜炎 chicken pox, varicella 水痘 cholera 霍乱 cold 感冒,伤风,着凉 (head) cold 患感冒 diabetes 糖尿病 diphtheria
英文语法词汇
By Al Pessin Washington 10 April 2008 U.S. Defense Secretary Robert Gates says he no longer holds out the hope that the U.S. troop level in Iraq will be down to 100,000 by the time the Bush administration leaves office in January. But he does hope fo
VOA常速英语2008年（四月）
Jefferson kept his promise to Sally Hemings. All four of their children were freed while Jefferson was still living or by the terms of his will. Their son Beverley and daughter Harriet settled in Washington, D.C. Madison moved to Ohio, earning a livi
名人认知系列 Who Was
Most members of Congress signed the Declaration on August 2, 1776. Its author signed the paper Th Jefferson. After signing, he was ready to go home. He missed his family. Besides, he felt he was needed in Virginia. He quit his seat in Congress on Sep
名人认知系列 Who Was