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v.衰退，堕落，退化( degenerate的现在分词 )...
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n.年长女伴（以前在英国，未婚女子出入社交场所必须有年长的女性陪同，以监督她的行为。），（尤指儿童表演时的）保护人，监护人，（未成年人舞会上的）行为监督人vt.作女子陪伴人，作监护人...
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Medicine intermediate N - ethylethylenediamine ( NEED ) was synthesized from acrylamide and ethylamine by addition reaction and Hofmann rearrangement.以丙烯酰胺为起始原料,经乙胺加成后,再经Hofmann重排两步反应后合成了药物中间体N - 乙基乙二胺 ( NEED )....
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氢可酮...
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n.乱花钱，糟蹋钱，挥霍vt.& vi.乱花（钱），糟蹋（钱），挥霍...
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hum的现在进行时为：humming...
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For added protection choose a lipstick with a sun screen.选择防晒护唇膏来增强保护。Protection of sites, habitats and landscapes is of uppermost priority.保护遗址、栖息地和风景区是重中之重。Your arms and legs need protection from light bouncing off gla...
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continental的复数形式为：continentals...
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Lignasan的音标：Lignasan的英式发音音标为：[lɪg'neɪsən]Lignasan的美式发音音标为：[lɪg'neɪsən]...
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Pale colours are much more in vogue than autumnal bronzes and coppers.浅色比黄褐色和红棕色这些秋季色彩更流行。I only paid a few coppers for it.我只花了几个铜板买下这东西。He had only a few coppers in his pocket.他兜里仅有几个铜板....
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It must be alloyed with more creative, generative processes to accomplish much.要想大有作为,就必须融入更富创造力和生产力的过程.Generative Semantics was developed as a reaction to Chomsky's syntactic - based TG Grammar.生成语义学的形成是对乔姆斯基以句法为基础...
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hollowware的音标：hollowware的英式发音音标为：['hɒləʊweə]hollowware的美式发音音标为：['hɒloʊˌwer]...
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把…领进...
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n.（绘画中）明暗对照法，（文学中）对比法，对照法...