Phr V
revolve round
revolves, revolving, revolved
revolve around/round sth/sb
if an activity or conversation revolves around something or someone, that thing or person is the main reason for the activity, or the main subject of the conversationThe conversation revolved mainly round the problems of childcare.Her life revolves around her husband and six children.The trouble with John is that he thinks the world revolves around him. (= he thinks that he is more important than anyone else)