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[0:0]arithmetic arouse arrange算术 引起,唤起 安排,准备 [0:37.8094]arrest artificial artistic aspect逮捕,拘留 人工的,人造的 艺术的,美术的 方面,面貌 [1:31.0307]assemble assembly assess asset混合,聚集 立法机构,议会 对...估价 人价值的,优点 [2:22.6436]as

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Researchers Create Artificial Skin With Sense of Touch Scientists have recently made considerable gains in creating human-like artificial limbs, but they still look and feel artificial. That could change with a development from South Korea. Researche

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在这个节目中我们将学到： 经典语境背诵 Daniel：Daddy is very busy man and most of the time and he has little time for any physical excerises. Recently, even going upstairs makes him out of breath. So the other day I asked him to go

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Rock climbing is the original extreme sport． Basically , rock climbing is going from the bottom of a wall to the top and then back down again. The main goal is to have fun while doing so and to pref

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Scientists at the Massachusetts Institute of Technology have turned to Mother Nature for inspiration, inventing a device that mimics photosynthesis, the process plants use to convert sunlight and water into usable energy. MIT chemistry professor Dani

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Scientists say they have successfully tested artificial blood vessels grown in the laboratory. In a heart bypass operation, surgeons typically remove a vein from a patient's leg and use it to replace blocked arteries that feed the muscles of the hear

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By Melinda Smith Washington, DC 15 February 2008 Obesity is becoming a worldwide problem, even in developing countries. But diet drinks and food prepared with sugar substitutes do not seem to help curb people's appetites. Now a new study may provide

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Brad and his friends needed something to do. They had no idea what to do. It was a Saturday morning. Brad's friend, Jeremy suggested they go rock climbing. None of them had ever been. Brad agreed and said it would be a good idea. They drove to the ro

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