In Engpsh, a mentor-mentee pairing is often referred to as a "mentorship." A mentor is a more experienced or knowledgeable person who helps guide and support the professional development of a mentee, who is a less experienced or newer member of a field. The relationship between a mentor and mentee is typically a long-term one, focused on helping the mentee develop the skills, knowledge, and confidence needed to succeed in their career.

Here are a few ways you could describe a mentor-mentee pairing in Engpsh:

"The mentor is helping the mentee grow and develop in their career."
"The mentee is learning from the mentor's expertise and experience."
"They have a mentorship relationship, where the mentor is providing guidance and support to the mentee."