单词：mattress reflector
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In 1970, the Soviet Union put a laser reflector on the moon, carried by a rover. A few months later, it disappeared. Some speculated that the rover had fallen into a crater or parked in such a way as to render the reflector inaccessible. Now after 40
Scientific American(四)月
The One With the Race Car Bed -------------------------------------------------------------------------------- Written by: Seth Kurland Transcribed by: Eric Aasen -------------------------------------
六人行—第1-5季
据《科学》杂志报道，苏联的月球车40年前在月球表面留下了激光反射器，虽然经过多年的搜寻科学家始终没有发现激光反射器的踪迹。 4月22日，一组物理学家终于发现了来自反射器的微弱闪
60秒科学
Gain - This is an increase in signal power, due to a boost from an electronic device. Garbage - These are unwanted characters that appear because of either incorrect settings or noise. Gate - These ar
电信英语
Aim for fresh, healthy air Chronic obstructive pulmonary disease (COPD) is serious, but theres no reason you cant enjoy life after a diagnosis. COPD stands for two processes that almost always occur together: chronic bronchitis, which is inflammation
英语小短文
RACHEL MARTIN, HOST: It's President's Day. But have you ever wondered why at some point along the way, this holiday became synonymous with more than just our past commanders in chief? Somehow mattress sales got worked into the equation. (SOUNDBITE OF
2017年NPR美国国家公共电台2月
The Five-hundred-meter wide Aperture Spherical Telescope, or FAST, is now operational in the mountains of Guizhou in southwest China. FAST has been designed to help Chinese researchers better understand our universe, as well as probe the cosmos for e
2016CRI中国国际广播电台
Bart's upstairs neighbor was driving him nuts. He made all kinds of strange noises at all kinds of strange hours. If I tell my neighbor he's noisy, he won't believe me, Bart thought. He'll believe me only if he lives downstairs and hears himself upst
英文短篇故事（纽约）
DNA tests were new, and the one that Jobs took was done at UCLA. DNA测试在当时还是新鲜事物，乔布斯在加州大学洛杉矶分校进行了测试。 I had read about DNA testing, and I was happy to do it to get things settled, he said. 我
乔布斯传
By Paul Sisco Washington 14 November 2007 At the McDonald Observatory in western Texas, a unique space program has been quietly underway for more than 30 years. It is called the Lunar Laser Ranging Program. VOA's Paul Sisco has more. Research scienti
VOA常速英语2007年（十一月）
经济危机给人们不仅带来经济上的危机，还给人们带来精神上的危机。工作压力越来越大，这使得上班的白领们的睡眠质量收到严重的影响。怎样解决白领们的失眠问题呢？看看下面的这些小
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From helping to relieve backache to regulating temperatures between the sheets and helping to prevent snoring, mattresses have become seriously high-tech these days. 如今的床垫也纷纷采用了高科技，有的可以调节床单的温度来缓解
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Rochelle Thomas has gotten so fed up with her husband's snoring over the years that she's created a 'three strikes rule.' Each time he wakes her up with his snorts, honks or shudders -- shaking the mattress 'like a cheap motel-bed vibrator' -- she gi
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Of course you want to sleep with your pet. She is cuddly and warm and (usually) takes up less room than a human. 你当然想和你的宠物一起睡啦，它那么可爱，又暖和，（通常）还比人占地儿少。 But the sad truth is that sh
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And, it was...it was pretty rough there. 挺艰辛的 I have to say,I had the experience of moving out here, 我得说 我是22岁时 When I was 22 and it was like going to the moon. 搬了过来 简直像登月一样 you know,I was just getting star
柯南脱口秀
9 Tips For Better Sleep Whenever I see a toddler or small animal sleeping in a ridiculous position, a little part of me gets terribly jealous. Not because I want to be a small child or a furry kitten. Because I want to enjoy that same sort of rest! I
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The construction of the project was started in 2011 with an investment of 1.2-billion yuan, or about 180 million US dollars. The 500 metre Aperture Spherical Telescope, or FAST, is the size of 30 football fields. It's located in a hollow that was for
2016CRI中国国际广播电台
How to Get Better Sleep Getting a good nights sleep ensures more than extra spring in your step each day. According to Harvard Womens Health Watch, chronic sleep loss can contribute to weight gain, high blood pressure, and a weakening of the immune s
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初级英语听力(新版) Lession18 Cigarette? No, thanks. Not before lunch. Please have one. It's a new brand. I honestly don't feel like one at the moment, thanks. I believe you take in foreign students. Yes, if you don't mind sharing. How much is
初级英语听力新版