revolve around
v 1: center upon; "Her entire attention centered on her
children"; "Our day revolved around our work" [syn: {focus
on}, {center on}, {revolve around}, {revolve about},
{concentrate on}, {center}]
2: move around in a circular motion; "The Earth revolves around
the Sun" [syn: {revolve around}, {circle around}, {circle
round}]