Geneticists in Canada have discovered a clue to the puzzle of why our cells get old and die...加拿大的遗传学家已经发现了解开细胞衰老、死亡之谜的线索。Geneticists only recently discovered the identity of the gene that causes it.基因学家最近才发现了造成这一现象的基因特征...
《每日邮报》的头版标题为“良知的声音”。The Daily Mail has the headline "The Voice of Conscience"看到有些罪犯还有良知让人感到欣慰。It's pleasing to see some criminals have a conscience.我们遵从了自己的良知，尽到了自己的义务。We have followed the dictates of our conscience...