单词：polymerisates
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有声畅销书-秘密
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Are your car bumpers riddled with scars from encounters with tight parking spaces? Did the furniture movers scratch your floor? Wouldn't it be great if t
Scientific American(四)月
This is Scientific American's 60-Second Science. Im Cynthia Graber. This will just take a minute. Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because
Scientific American(三)月
Most of us blink without thinking. But people whove sustained strokes or combat injuries can lose their ability to blink. Which is important for lubricating and cleaning the eye. Surgery is an optiona small piece of muscle transplanted from the leg c
Scientific American(一)月
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Peace Prize winner and former Finnish President. He also won the 2008 UNESCO Peace Prize. Ahtisaari has spent much of his career in the worlds danger zones trying to bring peace to people at war. Ahtisaari started his career as a school teacher, whic
各国名人英文介绍
Visa Inc. is one of the worlds largest global payments technology companies. Contrary to popular belief, it does not issue credit cards but allows financial institutions to issue cards that Visa then processes transactions on. Visa started in 1970, d
各大品牌英文介绍
Lowering the Ceiling on Roof Energy Losses Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because traditional black asphalt roofs heat up in summer and s
60秒科学
资本主义、民主制度与全民享有的政治权利，在已开发国家是受到支持的；但对新兴市场区域的人来说，多半是奢求。在这场铿锵有力的演说中，经济学家丹比萨 莫约(Dambisa Moyo)提出理由说明
TED公开课:世界权势大转移
This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?. [Spray sound.] Killing bugs? No. [Spray sound.] Deodorizing the bathroom? No. [Spray sound.] Checking for explosives, yes. Because chemists at the University of Califor
Scientific American(九)月
Patients undergoing coronary bypass surgery need implants of new, healthy blood vessels. So do those who receive repeated hemodialysis due to kidney failure. The best option is to use the patient's own veins or arteries, but thousands of patients don
Scientific American(二)月
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Solar cells convert sunlight to electricity. But they don't take advantage of all that solar heat, thereby missing out on the majority of the solar ene
Scientific American(四)月
Technology Report - A Better Computer Mouse Cursor for the Disabled This is the VOA Special English Technology Report. 这里是美国之音慢速英语科技报道。 Using a computer mouse or trackball can be a little tricky. You choose the object
2011年VOA慢速英语(四)月
Research Breakthrough for Biodegradable Tires? 研究人员研发完全可降解轮胎 Researchers say they have created a new synthetic rubber that could be used to make biodegradable tires. A team at Texas AM Universitys campus in the Gulf nation o
2016年VOA慢速英语(九)月
'Smart' Bandages Could Heal Wounds More Quickly 智能绷带有助更快治愈伤口 Simple bandages are usually seen as the first line of attack in healing small to moderate wounds and burns. But scientists say new synthetic materials with embedded
VOA标准英语2016年(二月)
Todd: So, Lucinda you were saying that your boyfriend Kwame really likes New Zealand, so are you guys going to move back to New Zealand. Lucinda: Yes, we're actually leaving at the end of this month on the 30th of November. Todd: Oh, really, you're m
原版英语对话1000个
The remains of the Italian woman who was the model for Leonardo da Vinci's Mona Lisa（蒙娜丽莎） were dug up 30 years ago and now lie in a municipal rubbish tip, an Italian expert has claimed. Lisa Gherardini died in Florence in 1542 and was bu
英语新闻
Feel the wind As it brushes right over my cheek See the haze As it covers my eyes Feel my body's intention No mind can destroy As it rises and leaves me numb Feel it all coming down Feel it all coming down As I stand in the way And I'm lost on the gr
美国乡村音乐
Through this world will you guide me Through this pain Will you always hold my hand when I need you When I don't know what I'm doing with myself I'm a lost soul Walking through this world Like I have some idea When I don't, I don't And I take on the
美国乡村音乐