Language: the official language is French the main national languages are Lingala and Kikongo.

语言：官方语言是法语，主要民族语言是林加拉语和刚果语。

youdao

Language : french is the official language. the majority of the population speaks bantu languages, including swashili, lingala, tshiluba and kikongao.

语言：法语为官方语言，大多数人讲属于班图语系的斯瓦希里语、林加拉语、契卢巴语和基刚果语。

youdao

He speaks the official national language, French, poorly and the unofficial one, Lingala, not at all.

ECONOMIST: Kabila is dead, long live Kabila