(alumina 的复数) n. 矾土
[化] 矾土; 氧化铝

plural of alumina
n. any of various forms of aluminum oxide occurring naturally as corundum

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发表于:2018-12-07 / 阅读(134) / 评论(0)

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The dilemma has been haunting the United States for decades. Do you prop up a regime that treats you favorably, even if that regime does not necessarily share your democratic principles? Or do you stand firm on your values, even if it means losing a

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发表于:2019-01-02 / 阅读(239) / 评论(0)

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发表于:2019-01-02 / 阅读(206) / 评论(0)

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发表于:2019-01-07 / 阅读(165) / 评论(0)

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By Peter Fedynsky Washington, DC 22 June 2006 watch Common Values report President Bush's summit in Vienna with leaders of the European Union covered a broad range of topics - from trade to terrorism; from poverty to intellectual property; from the

发表于:2019-01-13 / 阅读(186) / 评论(0)

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发表于:2019-01-23 / 阅读(155) / 评论(0)

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A classical guitarist was thrilled to hear from New York City police that his valuable guitar had been found. It disappeared almost a year ago when he got out of a taxicab and forgot to take the guitar with him. Laurence Lennon, 44, said he was runni

发表于:2019-01-30 / 阅读(179) / 评论(0)

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Presenter/producer: John Escolme John: This is Real English from BBC Learning English. Im John. Jean: And Im Jean. John: Today were going to look at words and phrases that have recently become part of the English language. Jean: 在Real English节目中

发表于:2019-02-26 / 阅读(245) / 评论(0)

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abundisporus roseoalbus

acetyl-N-acylneuraminate