Like a family tree that you might use to trace back through generations of ancestors, only it's showing a family of genetically related languages instead of people.

就像你可以追溯祖先的家谱一样，它只是在显示与遗传相关的语言，而不是人类。

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The tree model is a convenient way of representing the development of a language family and of showing how closely related two of more languages are.

树形模型是表示一个语言家族的发展并显示两种或更多语言的密切相关程度的一种便捷方式。

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Now, one way of representing the evolution of languages, showing the way languages are related to each other, is with the family tree model.

现在，描述语言的演化、展示语言之间的相互关系的一种方法，是用系谱图模型。

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To do so he looked at three well-studied parts of the linguistic family tree: the Bantu languages of Africa, the Indo-European group from Eurasia and the Austronesians of the Pacific.

ECONOMIST: Languages and species evolve in surprisingly similar ways