The family are rich, and extremely sophisticated and cosmopolitan.这家人很富有,老于世故,而且见多识广。CAVENDISH COLLEGE is proud of its multicultural student body which diversity of a cosmopolitan like London.卡文迪什学院以拥有来自世界各地的留学生而自豪.Alexa...
Isocyanic acid p - chlorophenyl ester was obtained with triphosgene and p - chloroaniline as raw materials.以对氯苯胺和三光气为原料,合成对 氯苯 异氰酸酯.The p - chlorophenyl isocyanate is synthesised by carbonyl chloride and p - chloroanilin...