Medieval siege 中世纪攻城战-8

Even with 12 timber framers pulling, the firing pin won't budge . It is quite normal that I mean the trigger first is stiff, we found that at home. It takes a lot of efforts which is as well as in som

VOA慢速英语2016 朝鲜再次发射短程导弹

朝鲜再次发射短程导弹

SSS 2008-10-23

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Animals rely on all sorts of cues to find their next meal. Monkeys and birds are attracted to the colors of ripe fruits and berries. And snakes find thei

美国科学60秒 SSS 2013-02-21

Naked skin or effectively naded skin has been the primary interface between the human body and the environment for over 200,000 years. Penn State anthropologist Nina Jablonski on the evolution of human skin pigmentation at the annual meeting of the A

【对话类英语听力】92

A: Hey Jason. What are you doing this Friday? B: I'm going to go to the driving range cause I'm playing golf on Saturday. A: You're golfing without me? What's up with that? B: Sorry man, but we already have a foursome. I'm going with a couple of guys

Advanced Listening Lesson 24

A: Hey Jason. What are you doing this Friday? B: I'm going to go to the driving range cause I'm playing golf on Saturday. A: You're golfing without me? What's up with that? B: Sorry man, but we already have a foursome. I'm going with a couple of guys

美国科学60秒 SSS 2012-11-12

Rising season severe storm is the most talked about threats of climate change. But here is another. No more coffee. Because rising temperatures make cripple wild populations of Arabica coffee, and most cultivated species in the world. So says a study

美国科学60秒 SSS 2012-11-09

Rising seas and severe storms are the most talked-about threats of climate change, but here's another, no more coffee. Because rising temperatures may cripple wild populations of / coffee, the most cultivated species in the world. So says a study in

Health Experts Detail Radiation Symptoms

U.S. health experts monitoring Japan's nuclear crisis are seeking to explain health risks from radiation（放射） exposure, while cautioning that radiation levels measured this week at the Fukushima-Daiichi power plant in northern Japan have not y

VOA慢速英语2010年-SCIENCE IN THE NEWS - Keeping a Lookou

DOUG JOHNSON: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Doug Johnson. FAITH LAPIDUS: And I'm Faith Lapidus. Today, we will tell about skin cancer. (MUSIC) DOUG JOHNSON: Skin cancer is one of the most common forms of cancer. It is also

VOA标准英语2010年-Short-Range Nuclear Weapons Not Part o

US President Barack Obama, left, and his Russian counterpart Dmitry Medvedev, right, shake hands at a press conference after signing the newly completed New START treaty reducing long-range nuclear weapons at the Prague Castle, 8 Apr 2010 The New Str

VOA双语新闻：两韩联合经济区谈判无进展

A third round of talks over an embattled joint industrial zone between North and South Korea has produced no progress. The North apparently launched several short range missiles into the ocean even as South Korean delegates were making their journey

PBS高端访谈:儿科癌症幸存者不得不面临一生的健康挑战

JUDY WOODRUFF: Almost 80 percent of children who are diagnosed with cancer today in the U.S. survive, thanks in large part to advances in treatments like radiation and chemotherapy. But a growing body of research indicates survivors are at greater ri

WHO Warns Against Self-Medication as Antidote to Radiation

The World Health Organization (WHO) warns against the indiscriminate(任意的无差别的) use of potassium iodide as a precaution against nuclear radiation. WHO is issuing this advisory following reports of people in Japan and elsewhere who are usi

Japanese Radiation Adviser Quits in Rebuke

A key Japanese adviser on radiation（放射 ） leaks at the country's disabled Fukushima nuclear power facility has quit in protest over the government's handling of the disaster. The adviser, Toshiso Kosako, a radiation safety expert at the Univer

food from Japan to be tested for radiation

NEW DELHI, March 16 (Xinhua) -- The Indian government has ordered food originating from（发源于） Japan to be tested for radiation in the wake of explosions at a Japanese nuclear plant following a devastating earthquake-tsunami last Friday, repo

VOA标准英语2008年-Russia: Iran's Current Missile Range Too Short

The United States and Russia continue sparring over a Central European missile defense system, as Secretary of State Condoleezza Rice says America is committed to protecting its allies from a possible Iranian missile attack, and her Russian counterp

U.S. finds low levels of radiation in milk

WASHINGTON, March 30 (Xinhua) -- A trace amount of radioactive(辐射性的) iodine（碘） has been found in a sample of milk from the west state of Washington, the U.S. Environmental Protection Agency and the Food and Drug Administration (FDA) sai

奥斯卡大奖英文表达法

奥斯卡大奖英文表达法

VOA标准英语2009年-North Korea Fires Short Range Missiles as

A third round of talks over an embattled joint industrial zone between North and South Korea has produced no progress. The North apparently launched several short range missiles into the ocean even as South Korean delegates were making their journey