requirement

n.要求，需求

republicanism, repudiate, repudiation, repugnance, repugnant, repulse, repulsion, repulsive, repulsively, repulsiveness, reputable, reputably, reputation, repute, reputed, reputedly, request, request stop, requiem, require, requisite, requisition, requital, requite, reread, rerun, resale, rescind, rescission, rescue, rescuer, research, research into, researcher, reseat, resell, resemblance, resemble, resent, resentful,