他天生擅长交际：他的祖先曾是封建领主。Diplomacy was in his blood: his ancestors had been feudal lords.许多人留恋不舍地回顾封建时代.Many people look back with nostalgia to feudal times.他是封建领主.He was a feudal lord....
Today on the streets of Montreal, opinion seems still to waver.今日在蒙特利尔的街头巷尾，人们的意见仍摇摆不定。The retrofit program will be carried out at the Montreal facilities.蒙特利尔将要开展市政设施的翻新改良工程。He won the discus at the Montreal Olympics.他在...
This paper reviewed the synthesis of benzene phosphorus dichloride ( BPD ) and its applications.介绍了二氯苯基膦 ( BPD ) 的合成方法及其应用.The production and consumption presents of ethylene dichloride, and development prospect in the w...