单词：angle of approach light
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Lesson 117 Father used to be a Boy Scout Narrator: The Clarks went camping last week-end. They put up their tent in a field. Father: If you collect some sticks, children, I shall light a fire. Sandy: Here you are, dad. Sue: Weve brought lots of dry s
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Short Conversation 询问有关产品方面的问题 A:Can you explain this product to me？ B:Our device analyzes material without damaging the product.Just point the infrared light to a target and the machine gives you numeric data. A:Very interest
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-It's an amazing technology, and the trick to it is really creating a material that can bend light waves. In this case it's infrared waves. So we can't actually see them, that's next. -Well,let's see, I think we got a graphic here that describes how
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what if she's an angle There's a man standing on the corner 一个男子站在街角 With a sign sayin will work for food You know the man 身边的标示告之 他已失去了工作 You see him every morning 你每天清晨都能见到他 The one yo
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春节的脚步近了，自拍刷屏党们的心也开始蠢蠢欲动，除了45角俯拍，还有哪些自拍技能让你完败朋友圈的其他小伙伴？新技能赶紧学起来！ Selfies have emerged as a ubiquitous way to capture memorable mo
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