马德琳的第一语言是法语，但她也流利地说德语。

Madeleine's ___first ___language is French, but she also speaks German fluently.

我来自德国，因此我的第一语言是德语。

Originally I come from Germany and therefore my ___first ___language is German.

孩子们通常从父母那里学习他们的第一语言。

Children usually learn their ___first ___language from their parents.