The addition reaction with hydrogen cyanide is base - catalysed.与氰氢酸的加成是碱催化的.Increasing the system pressure increases the concentration of ammonia and hydrogen cyanide.增大体系压力能使氨和氰化氢的浓度升高.The addition of steam inhibits th...
Association of Principal and Senior Assistant Masters and Mistresses of Education Department.香港教育学院讲师协会.The mistresses of the two neighboring houses made a scene over some trifles.相邻两所屋子的主妇为了点小事吵了一场....
他对那些人很有看法，看不起他们粗俗的举止。He was critical of the people, disparaging of their crude manners.他非常看不起政客。He is deeply scornful of politicians.他看不起那些阿谀奉承的人.He despised people who were lavish with their praises....
They accused the former prime minister of being a backseat driver.他们指责前首相越俎代庖。Why is he such a backseat driver when he rides with me?为什么他跟我一起坐车时,总是指手划脚?To avoid being a backseat driver, I keep my mouth shut.为了避免乱出主意, 我只好...