单词：sulfonated polystyrene type resin
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Lesson 38 Text A Can't She Type? The well-known banker, T. J. Ellington, was at one time in his younger days the manager of a New York office. His secretary had been with him for many years, and knew
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[00:04.24]Mommo, here's your-- What are you doing? 奶奶 给你 你在做什么? [00:06.08]Preventing alien abduction, that's what l'm doing. 我在准备应对被外星人拐骗 [00:11.16]Thank you. 谢谢 [00:16.56]Dang crabgrass. 该死的草 [00
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The Great Pacific Garbage Patch may be disappearing, and not in a good way. New research presented at the biannual meeting of the American Chemical Society reveals that polystyrene actually can break down in seawater. Polystyrene is probably better k
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1135 、 晶体点阵；晶体格构；晶格 crystallattice 1136 、 棘轮和爪 ratchetandpawl 1137 、 棘齿 ratchet 1138 、 棘齿弓钻 ratchetbrace 1139 、 壳型模塑 shellmoulding 1140 、
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Todd: OK, John could you tell us about your wedding day? John: Sure, I got married about two years ago on May 18th. I got married in my wife's parents backyard. They have a really beautiful backyard, with a pool and it's nicely landscaped, with lots
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But there's no guarantee rescue will come,and with such little water here, 是否有人救援还是未知之数 此地淡水贫乏 your health will start to decline rapidly. 人的健康状况会迅速恶化 Given that choice, I'd build a raft and se
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