Carbon dating provides the archaeologist with a basic chronological framework.碳元素年代测定法给考古学家提供了基本的年代框架.He's an archaeologist and has been on a dig in Crete for the past year.他是位考古学家，过去的一年都在参与克里特岛上的一项考古发掘工作。My uncle i...
Naked aggression and an attempt to change frontiers by force could not go unchallenged.公然的侵略和企图用武力改变边界的行径是不能置之不理的。Researchers are pushing back the frontiers and opening doors to reveal why things happen and how things wo...
All colour fades— especially under the impact of direct sunlight.所有颜色都会褪色——尤其是在阳光直射下。The impact of religion on voting has been analysed far too simplistically.有关宗教对选举的影响的分析太过简单了。The specific impact of the greenhouse effe...
Microspheric trans aconitic acid imprinted polymers were synthesized via a precipitation polymerization with acetonitrile as solvent.以乙腈为分散剂,采用沉淀聚合法合成了反乌头酸分子印迹聚合物微球.Acetonitrile continuous recovery plant is a subsidiary ...
He had been devious and two-faced.他从前向来都是阴险狡猾，口是心非。Video clips are a good way of making candidates look two - faced.视频片段能够很好地展现出竞选者们截然不同的两面性.If I were two - faced, would I be wearing this one?如果我真是两面人, 我会用这一张脸见人 吗 ?...