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—...
The vehicle was impounded as part of the police investigation.这辆车作为警务调查的一部份被扣押了.The police had come to my house and impounded all my belongings.警察曾到我家没收了我所有的财物.The police moved in, arrested him and impounded the cocaine....