There are several ways to separate excited from unexcited molecules, thus harvesting the desired isotope.目前有几种方法可以把受激发分子同未受激发分子分离开, 这样,就可以大量得到我们所需要的同位素了.He was still unexcited.他仍然不激动....
加上贝蒂的薪水，他们仅能勉强维持生计。With Betty's salary they barely made ends meet.贝蒂蹲坐在地板上。Betty hunkered down on the floor.在贝蒂看来，乔有点儿世故。To Betty, Joe had an air of worldliness....
里奥克知道那些大俱乐部一直在企图挖走安迪·沃克。Rioch knows the big clubs have been sniffing around Andy Walker.布鲁斯·里奥克的勃勃雄心是他们新近成功的主要原因。Bruce Rioch's driving ambition is the main reason behind their new-found success....