He always brags about his achievements.
He's so careless that no one wants to work with him.
You should not say bad words about your colleagues behind their back.
Mutual respect is vital in establishing relationship with others.
The relationship among colleagues is more complicated than the campus relationship.
He is the soul of the team.
A competent colleague sometimes poses threat to you.
The members of our office get along like a family.
He's younger than his age but he's quite professional.
My colleague Todd is much of a friend and he's ready to help me any time.
A good colleague is supposed to be efficient and cooperative.
Working in a project is a good practice of team spirit.