The diisobutyl dicarboxylate was prepared by using acid and isobutanol as material and acid as catalyst.以二羧酸和异丁醇为原料,用硫酸作催化剂,合成二羧酸二异丁酯.Butyl cinnamate was synthesized from cinnamic acid and butyl alcohol using tungstosili...
Acid rain is not straightforwardly attributable to the burning of coal.酸雨并非简单地由烧煤造成。Nor is acid rain always, and universally, a bad thing.酸雨也并非在任何情况下都是坏事。This comedy of contemporary manners is told with compassion and ac...
他对同事们草草敷衍的工作鲜有耐心。He has little patience for sloppy work from colleagues.梅利娜被草草地介绍给了男士们。Melina was perfunctorily introduced to the men.几个在押犯被草草处决。Several detainees had been summarily executed....
He has an urge to become a film star.他非常希望成为电影明星。an overpowering urge难抗拒的冲动The firm has taken out adverts in national newspapers to urge customers to return suspect products.该公司在全国性的报纸上登出广告，催促顾客退回疑似假冒产品。I have complained...