Final answer:
The Supervisor-Trainee relationship is a long-term, stable, and not easily changed commitment and relationship.
Step-by-step explanation:
The Supervisor-Trainee relationship has been characterized as a long-term, stable and not easily changed commitment and relationship. This means that the relationship between the supervisor and the trainee is expected to last for a considerable amount of time and is built on a solid foundation. It is not a short-lived or convenient relationship that can easily be replaced or altered.