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胺能参加与卤代烷的亲核取代反应.Amines can engage in nucleophile substitution reaction with alky.这个反应称为Hofman消除反应, 它很像卤代烷的脱卤化氢反应.This reaction, called the Hofman elimination, is quite analogous to the dehydrohalogenation of an alkyl hal...
2026年03月09日
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hyperdistention的音标:hyperdistention的英式发音音标为:[haɪpədɪs'tenʃn]hyperdistention的美式发音音标为:[haɪpədɪs'tenʃn]...
2026年03月09日
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The ground had opened to disgorge a boiling stream of molten lava.大地开裂,汩汩冒出炽热的熔岩。The city was entombed in volcanic lava.城市被火山熔岩掩埋。Lava is extruded from the volcano.熔岩从火山中喷出。...
2026年03月09日
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fetch的现在完成时为:fetched...
2026年03月09日
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You have to know where to stand for a good viewpoint.你得知道站在哪里观察角度比较理想。The handles stand proud of the doors of the car.把手位于车门之外。She is to stand as a Member of the European Parliament.她将竞选欧洲议会议员。...
2026年03月09日
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apprentice的音标:apprentice的英式发音音标为:[ə'prentɪs]apprentice的美式发音音标为:[ə'prɛntɪs]...
2026年03月09日
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cupola的复数形式为:cupolas...
2026年03月09日
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Supplementary oxygen is rarely needed in pressurized aircraft.密封的飞机内很少需要补充氧气。There is a supplementary water supply in case the rain supply fails.万一主水源断了,我们另外有供水的地方.A supplementary volume has been published containing the...
2026年03月09日
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2026年03月09日
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acute的近义词/同义词有:discerning, keen, sharp, and, quick, astute, shrewd, severe, smart, exigent, astute, discerning, burning, peaked, acid, shrewd, smart, apt, keen, quick, sensitive, judicious, exquisite, violent, acidulous,...
2026年03月09日
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...100g wholemeal or rye flour.100克全麦或黑麦面粉I was eating ham and Swiss cheese on rye.我正吃夹火腿和瑞士干酪的黑麦面包。By cereals we mean wheat, oats, rye, barley, and all that.谈到谷物,我们指的是小麦 、 燕麦 、 黑麦 、 大麦之类的东西....the protagonist of J. D. S...
2026年03月09日
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tubers的音标:tubers的英式发音音标为:[t'ju:bəz]tubers的美式发音音标为:[t'jubəz]...
2026年03月09日
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adj.狂暴的,狂乱的,欢腾的,喧闹的...
2026年03月09日
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异水胆矾...
2026年03月09日
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sniper的复数形式为:snipers...
2026年03月09日