Each of these life - sustainng agents begins as a stem cell , a sort of hematological embryo.这三种维持生命的要素都起源于干细胞.干细胞是血液的胚胎.Dolly's legacy includes the possibility of making patient - specific embryonic stem cell lines...
They were very modern Tories in almost every sense.从几乎所有意义上说，他们都属于非常新潮的保守主义分子。The Tories will have to supply a more comprehensive prospectus than they have so far.它实际上标志着一场遥遥无期的政治大选拉开了序幕.Steel factories edible fungus fac...
There are two among their recent introductions that have greatly impressed me.在他们最近引进的东西里面有两样给我留下了非常深刻的印象。His speech ignited the crowd greatly.他的演说使群众激动万分.Hand , being greatly hurt in his pride, contemplated only severe ...