大量芽状突出物形成,并被脱出以获得微细胞.A larger number of budlike protuberances form and are pinched off to give microcells.从这一观点来看,城市是个象山岳一样的自地面升起的突出物.From this standpoint the city is an elevation, rising from the ground like a mountain....
另两个为胸腺嘧啶和胞嘧啶, 即称为嘧啶的单环结构.The other two, thymine and cytosine, are single ring structures called pyrimidines.嘌呤为嘧啶取代或嘧啶为嘌呤所取代,叫做颠换.The substitution of a purine for a pyrimidine, or vice versa is a transversion.本文研究氟脲嘧啶(5—...
Critics attacked the youth and inexperience of his staff.批评家们抨击他的员工年纪太轻，缺乏经验。We laughed at her inexperience in the kitchen; she couldn't boil water.我们笑她缺乏厨房知识, 连烧开水都不会.There are signs of youth and inexperience in hi...