氯苯 、 溴苯和苯硫酚化合物的谱带出现于低限附近.In compounds such as chorobenzene, bromobenzene and thiophenol it lies close to the lower limit.方法以3-甲氧基苯硫酚和对甲氧基 - 苯乙酮为原料经溴化、烃基化、环合重排排制得目标产物.Methods: The target compound was synthesized through b...
Everywhere building facades are pitted with shell and bullet holes.任一处的建筑物正面都布满了弹洞。He pitted John against Paul.他使约翰反对保罗.They pitted two cocks against each other.他们使两只公鸡相斗....
During the conversation, Rose broaches the topic of Buffett raising his offer.在会谈中, 罗斯向巴菲特谈到了提高报价的话题.Cutting Mat, Cutters Cutting Ruler , Blades , Trimmers , office Products, Craft Products Cutting Tools , Broaches and C...
他为这个农场忠心耿耿地操劳了20年.He has served the farm faithfully for 20 years.她的病是操劳过度引起的.Her illness was induced by overwork.这事请您多操劳.Would you mind looking after this?...
Hundreds of activists marked the holy day by marching for peace and disarmament.数百名积极分子以呼吁和平与裁军的游行纪念了这个神圣的日子。...unilateral disarmament.单边裁军The next government will play an energetic role in seeking multilateral nuclear d...
* 2千瓦的电炉a 2kW electric fire整天开着电炉太浪费钱了.It's expensive to leave the electric stove on all day.在用餐前的一刻钟把炖锅从电炉上端下来.Fifteen minutes before dinner, take the stew out of the oven....