revolve around somebody/something (
also revolve round somebody/something British English)
phrasal verb (
see also revolve)
1. [not in progressive] to have something as a main subject or purpose:
Jane’s life revolves around her children. The argument revolved around costs. She seems to think that the world revolves around her (=that she is the only important person).2. to move in circles around something:
The moon revolves around the Earth. [TahlilGaran] Dictionary of Contemporary English ▲