Bachelor's degree

My sister has just been graduated and she has a bachelor's degree in languages and literature. I am so proud of her. She worked hard for several years, did her best, and now she can speak a lot of languages and write interesting texts.

Excellent.

Note: native English speakers sometimes say to "talk" languages, however that is extremely informal, so it's much better to say to "speak" languages.

"To graduate" can the used transitively or intransitively, but it may not be used in the passive voice.