The theory of the dictatorship of the proletariat is the quintessence of Marxism.无产阶级专政的理论是马克思主义的精髓....an old stone cottage, the quintessence of rural England.一座堪称英格兰乡村风格之典范的石砌农舍It was the quintessence of an English mano...
He was the quintessence of all that Eva most deeply loathed.他是伊娃最深恶痛绝的那种人中的典型。It was the quintessence of an English manor house.那是典型的英式庄园宅第。John is the quintessence of good manners.约翰是礼貌的典范....
This is a generally known method for obtaining phenylnitromethane from benzyl cyanide.从苯乙腈制取苯基硝基甲烷就用这个方法.Benzyl butyrate was synthesized by using potassium bisulfate as the catalyst.以硫酸氢钾为催化剂,丁酸和苄醇为原料合成丁酸苄酯.DNA filamento...