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The hydroxyl groups can be changed into esters , ethers , acetals and ketals, etc.最常用的羟基保护基可归纳为三类:酯类 、 醚类和缩醛或缩酮类.Eight acetals ( Ketals ) were synthesized under the optimal conditions.在最佳条件下,合成了八个缩醛 ( 酮 ) 化合物.The yields ...
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gunmen的音标：gunmen的英式发音音标为：['ɡʌnmən]gunmen的美式发音音标为：['ɡʌnmən]...
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duels的音标：...
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embrangled的音标：...
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adj.熟练的，有技能的，需要技能的，娴...
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intorsion的音标：intorsion的英式发音音标为：[ɪn'tɔ:ʃən]intorsion的美式发音音标为：[ɪn'tɔʃən]...
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“胶接”的英语可以翻译为：cementing，glue joint ...
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adj.但丁（意大利诗人）式的，庄重的...
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你得自己把那株植物挖出来。You would have to dig up the plant yourself.按要求经常给每一株植物浇水。Water each plant as often as required.一株植物凋谢了，另一株又会盛开。As one plant fades, another comes into flower....
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megalomaniac的复数形式为：megalomaniacs...
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adv.在外面，向外面，在户外，露天n.外面，（弯曲路面或轨道的）外道，（靠近路中央的）外侧，（建筑物等的）周围adj.外部的，集团外的，（选择余地、可能性等）非常小，可能性最大的prep.（表示位置）在[向]…的外面，（表示范围）超出…的范围，（表示排斥）除了（某人）...
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Elsholtzia的音标：...
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来自世界各地的电视工作者和新闻记者齐聚一堂。There were television crews and pressmen from all around the world.来自投票站的消息称投票率很高。A high turnout was reported at the polling booths.来自首都洛美的报道称，部队驻扎在大街上。Reports from the capital, Lome, say troops are...
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She said that dreams go by contraries.她说梦与现实正相反.He has interpreted my statement by contraries.他把我的话解释反了.Many things in our lives go by contraries.人生中有许多与我们愿望相反的事情....