I had goose bumps when we watched the fireworks.我们看烟火的时候,我起鸡皮疙瘩.Photo Gallery: Whales The white bumps on a right whale's head are skin abrasions called callosities.鲸鱼图片 美术馆 .白色的隆起物在一条脊美鲸的头部是皮肤磨损称为老茧皮.She still got g...
Overpopulation is not compatible with freedom.人口过剩和自由是不可调和的.The Irish would not allow overpopulation to occur again.爱尔兰人不允许再发生人口过剩....young persons who are concerned about overpopulation in the world.担心世界人口过剩的年轻人Who know...
溶源性细胞与敏感细胞还有两点重要区别.Lysogenic cells differ from sensitive cell in two other important respects.溶源性是噬菌体和寄生染色体之间的半永久联合.Lysogeny is a semi - permanent association between the phage and host chromosomes....