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Lesson 67 A puncture Tom: Pump up this tyre, Sandy. It's very flat. Sue: What are you doing, Sandy? Sandy: I'm pumping up this tyre. Sandy: Whew! I'm tired. Tom: It's still flat. Tom: Let's take the tyre off the wheel. Sue: Put the tube in this basi
Andy: Hi Mary, how's it going? Mary: well, last night I had a big argument with Ann. A: terrible. It must be something serious. You two are such close friends. M: now that I look back at it, it wawsn't that big a deal. I shouldn't have lost my temper
Graphene Called Amazing, Versatile Material of the Future 前景光明的多功能材料石墨烯 In 2004, two scientists at the University of Manchester in England isolated a carbon-based material called graphene, with some unusual properties. Andre
Scientists Create Blackest Material Ever Of all the black things in the universe only the infamous black holes are so black that not even a tiny amount of light can bounce back. But scientists have managed to create material almost as black, and it h
D: (At Victor's home) Mom: Victor, I sewed up those jeans of yours today! Victor: Thanks, mom! Dad? What do you think about school uniforms? Dad: I think they're a fine idea for everyone but you! Victor: Huh? Why not me? Dad: You keep your mother bus
LULU GARCIA-NAVARRO, HOST: Today, we celebrate fathers for a lot of reasons - for their support and love, their jokes and, more importantly, their lessons. How to ride a bike, throw a ball, how to be a good friend. What our dads teach us can shape wh