Now, for the first time, we have been able to compare two relatively ancient HIV strains.

现在，我们第一次能够比较两个相关联的古老艾滋病毒株。

youdao

Now, for the first time, we have been able to compare two relatively ancient HIV strains.

现在，我们第一次能够比较两个相关联的古老艾滋病毒株。

youdao