revolution

n.革命，大变革；旋转；周期，循环

revise, revised, revision, revisionism, revisionist, revitalization, revitalization, revitalisation, revitalize, revitalize, revitalise, revival, revivalism, revivalist, revive, revived, revivify, revocation, revoke, revolt, revolting, revoltingly, revolutionary, revolutionize, revolutionise, revolve, revolve around, revolver, revolving, revue, revulsion, reward, rewarding, rewire, reword, rewrite, Rex, RFC, rh, rhapsodic, rhapsodize, rhapsodise, rhapsody, rhea,