就任 (jiù rèn): Assume office / Take up a post (Verb) — Meaning & Stroke Order

He starts his new job today.

He did not change his approachable style despite assuming an important position.

Lao Wang, congratulations on assuming the role of department head. Shall we celebrate tonight?

After the election, she successfully assumed the position of general manager of the company.

After assuming the post of ambassador and delivering a speech, she immediately plunged into intense work.