Isomerization occur during bromine reaction, that is mean secondary allylic configuration changes into primary allylic configuration.在溴化反应过程中存在分子结构重排, 即溴代仲位烯丙基构型向溴代伯位烯丙基构型发生转化....
避免使用磨蚀剂，以免损坏瓷砖。Avoid abrasives, which can damage the tiles.有磨蚀作用的材料不适合擦浴缸.An abrasive material is unsuitable for cleaning baths.雨和霜都是磨蚀岩石的自然力.Rain and frost are natural agents that wear away rocks....
The slightest little bit of inattention can let something slip through.稍不留神就会让某些东西蒙混过关。The accident was the result of a moment's inattention.这次事故是一时不小心造成的。One moment of inattention when driving could be fatal.开车时稍一疏...
专家们劝告禁止使用类似于Percocet,Vicodin的 复方抗菌药.The experts recommended banning combination drugs like Percocet and Vicodin.目的: 介绍儿科合理使用抗菌药物的一些基本原则.Objective : To introduce the essential principles of antimicrobial agents in the ped...
More cash will be saved by shutting studios and selling outside-broadcast vehicles.通过关闭演播室和出售实况转播车将节省更多资金。She wrote to Paramount Studios and asked if they would audition her.她写信给派拉蒙电影公司，询问他们是否同意让她去试镜。Studios are releasin...