Gray and his colleagues have put them to the test by examining four family trees.

格雷和他的同事通过研究四个家族树来测试它们。

There are two main problems linguists face when constructing these language family trees.

语言学家们在重建这些语言系谱时主要面临两大问题。

The result is that large family trees are created, beyond the individual level of each genealogist.

结果是超大的家族树创建起来了，超越了每个家谱学家的个人水平。

Despite that, you can already see the formation of gigantic family trees with many very distant relatives.

即便如此，你已经能够看到由许多远亲组成的一棵巨大家谱树。

We let Uncle Bernie and his fellow genealogists document their family trees through a genealogy website called geni.com.

我们让伯尼叔叔和他的家谱同行，通过族谱网站geni.com记录他们的家谱。

So-called pure-blood families maintain their alleged purity disowning, banishing or lying about Muggles or Muggle-borns on their family trees.

所谓的纯血种家庭为维护他们所声称的血统的纯正，通过抵赖或说谎的方式，否认他们家庭里有麻瓜或麻瓜出身者。

This election season is an ideal time to look into the family trees of our candidates and their critics to learn more about the ties that make them all part of this great country.

选举时期是研究候选人及其批评者家谱的良机，可以借机了解他们之间的血缘关系。

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。