单词:drill hardness testing machine
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Alice: Hello, I'm Alice Stephen: And I'm Stephen.Alice: And this is 6 Minute English! This week were talking about a very commonphobia a fear of the dentist and a possible new treatment. But first of all,Stephen, how does this sound make you feel? In
(MUSIC) That July was the hottest month ever in West Virginia. Many workers became tired and weak in the heat. John Henry was concerned his friends might lose their jobs. So, he picked up their hammers and began doing their work. One week, he did his
But my response to this robot was also interesting because I knew exactly how this machine worked, 但我对这个机器人的反应也非常有趣,因为我确切地知道这个机器工作的原理, and yet I still felt compelled to be kind to
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The Large Hadron Collider, the world's most powerful atom smasher, has gotten under way. Physicists at the European Organization for Nuclear Research, CERN, in Geneva successfully injected the first beam of particles into this colossal multi-billion