ShackeltonʃəˈkeltənCOCA²²⁷⁴⁰⁵ 基本例句 n.沙克尔顿¹⁰⁰ Shackelton added that if the co- evolution of the virus and human populations were as strict as previously thought one would not find so many differences in the family trees of the virus and humans. Shackelton进一步解释到：如果病毒和人群的协同进化如同以前所认为的那么严格，我们不会发现病毒和人类的家系图会有如此多的差别。 dxy