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967 、卷尺 flexiblerule;taperule 968 、接口；界面；分界面 interface 969 、接合 joining 970 、接合工具 joiningtool 971 、接地 earthing 972 、接缝 lappedseam;seam 973 、

发表于:2018-11-29 / 阅读(221) / 评论(0)

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Lesson 27: [00:03.58]Let's Do an Experiment! [00:07.24]One Experiment,Two Theories [00:11.81]A theory is an idea.A theory predicts what will happen. [00:18.57]An experiment shows what happens. [00:23.25]BRIAN:Did you read about this experiment,Danny?

发表于:2018-12-13 / 阅读(259) / 评论(0)

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发表于:2018-12-18 / 阅读(279) / 评论(0)

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Last time we talked about how astronauts eat and drink under weightless conditions in space. Today we'll cover the next question kids love to ask-how do astronauts go to the bathroom in space? It may sound silly, but it's really a good question, beca

发表于:2018-12-27 / 阅读(133) / 评论(0)

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The Mysterious Liquid In Yogurt When you open a container of yogurt, youll often see liquid collected on top. Some people mix it back into the yogurt, and others drain it off. What is it, and where does it come from? To solve the mystery of the liqui

发表于:2018-12-31 / 阅读(153) / 评论(0)

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发表于:2019-01-03 / 阅读(181) / 评论(0)

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express vt.表示 n.快车，快递 expression n.词句；表达；表情 extend vt.延长；扩大；致 extension n.延长部分；伸展 extensive a.广阔的；广泛的 extensively ad. 广泛地；

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发表于:2019-01-09 / 阅读(376) / 评论(0)

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发表于:2019-01-10 / 阅读(175) / 评论(0)

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Gas 气体 There are three different kinds of matter. They are solids, liquids and gases. 物质分三种：固体、液体和气体。 Gas has no shape, so you can't touch gas. 气体本无形，所以你触摸不到。 Gas moves very freely. 气体能

发表于:2019-01-10 / 阅读(168) / 评论(0)

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Angela Merkel was born in Hamburg in 1954. She became Germanys first female Chancellor and the first from communist East Germany in 2005. Forbes magazine listed her as the most powerful woman in the world in 2006 and 2007. Western media often dub her

发表于:2019-01-11 / 阅读(189) / 评论(0)

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This is the VOA Special English Agriculture Report. Sorghum farmers in eastern Uganda, working with scientists, have tested some lower-cost ways to improve their soil. Little rain and poor soil fertility are problems in that area, as in other parts

发表于:2019-01-11 / 阅读(181) / 评论(0)

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发表于:2019-01-13 / 阅读(178) / 评论(0)

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French fries are delicious. French fries with ketchup are a little slice of heaven. 我们都知道炸薯条很好吃，再配上番茄酱简直就是人间美味。 The problem is it's basically impossible to pour exactly the right amount. 但问题是

发表于:2019-01-17 / 阅读(174) / 评论(0)

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Take a look out your window, put on your glasses if you wear them. 向窗外张望一下，有必要的话，戴上眼镜。 You might want to grab a pair of binoculars, too, or a magnifying lens. 也许你还想拿副望远镜或是放大镜。 Now,

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5.常见手术名称 General Surgery 普外 appendectomy （appendicectomy）阑尾切除术 cholecystectmy 胆囊切除术 cholecystostomy 胆囊造口术 drainage of the abscess 脓肿引流 enterostomy 肠造口术 exploratory laparotomy 开腹探查

发表于:2019-01-17 / 阅读(242) / 评论(0)

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You know, he said, in an important voice, 你们知道，他用郑重其事的声音说， I've thought all along that that pig of ours was an extra good one. 我已经想通了，我们这只小猪是一只特级好猪。 He's a solid pig. That pig

发表于:2019-01-29 / 阅读(170) / 评论(0)

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Todd: So, Shona, you are quite fit. You like to run. Do you like to do anything else? Shona: Yeah, actually. I like quite a lot of different sports. I like to play tennis. That is like something that I like to participate in with someone else, but al

发表于:2019-02-06 / 阅读(201) / 评论(0)

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