They were comparing notes on each other's progress towards solving that most taxing of all puzzles: the riddle of the human genome.他们就解决人类所面临的最大难题，即人类基因组之谜的进展情况交换了意见。Genome - based Celera Genomics, the private compa...
How did the dinosaurs die out?恐龙是如何灭绝的？If we stopped at that the human race would die out.要是我们拘泥这一点,那么人类就会绝迹.A species may also die out if humans or.如果人类或别的动物消耗掉太多的植物....
He leaned over the counter so his face was almost level with the boy's...他倾身伏在柜台上，一张脸几乎凑到小男孩的面前。If you skip breakfast, your blood sugar level will drop and you will probably feel light-headed.如果不吃早餐，血糖含量就会降低，你很可能会觉得...
Howard smiled an iron smile, and nodded his head approvingly.霍华德透出了一丝冷若冰霜的微笑, 点点头表示同意.He nodded approvingly.他点头表示赞许。The ladies smiled approvingly, for his lightest utterance was regarded as incontrovertible truth.妇女们赞赏地笑...