Like a familytree 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。
2
How far back can you trace your familytree?
你的家谱可以追溯到多少代?
《牛津词典》
3
She could trace her familytree back to the 16th century.