任职 (rèn zhí): to hold a post; to take office

Professor Wang taught at Harvard University for five years, and during his tenure he published several important papers.

Due to his outstanding performance, he was promoted to sales manager, and the appointment notice has already been issued.

According to regulations, civil servants are not allowed to engage in any for-profit activities during their tenure.

She once held a post at the Chinese Embassy in France, responsible for cultural exchange affairs, and gained rich diplomatic experience.

He has held this position for over ten years and knows every aspect of the department's operations like the back of his hand.