family tree

A family tree is a diagram with branches, showing how the members of a family are descended and related.

家谱是说明家族成员血缘承袭关明细分支图。

Historical linguists have to identify and classify families of related languages in a genealogical family tree, and to reconstruct the protolanguage.

历史语言学家们通过对各语中相关语言进行甄别，勾画出家族谱图，从而重新构建语原始语。