related languages造句怎么写

A group of over400 closely related languages spoken in central, east-central, and southern Africa, belonging to the South Central subgroup of the Niger-Congo language family and including Swahili, Kinyarwanda, Kirundi, Zulu, and Xhosa.

Some methodological discussions about the grammatical comparison of the non-related languages;

any of several related languages of the Celts in Ireland and Scotland.

A small group of related languages spoken in Sudan and forming part of the Niger-Kordofanian language family.