[医] 氢氧化钠, 苛性钠

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In January 2015, a fire in one of Russia's largest university libraries damaged more than 1 million historical documents, an incident which some media described as a cultural Chernobyl. 2015年1月，俄罗斯最大的大学图书馆之一发生了火灾

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damage v./n. 损害 n. [pl.]损害赔偿费 damp a. 有湿气的,潮湿的同义词：humid a.潮湿的 dangerous a. 危险的,不安全的反义词：safe a.安全的解析：danger n.危险 You a

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HONG KONG, July 24 (Xinhua) -- As winds from Typhoon Vicente battered Hong Kong, the Hong Kong Observatory raised Tropical Cyclone warning to the highest level of Hurricane Signal No. 10 at 00:45 local time on Tuesday (16:45 GMT on Monday). Hurricane

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