单词 R4R 释义 R4R AcronymDefinitionR4RResources for Rethinking (Learning for a Sustainable Future)R4RReferral for ReferralR4RReady 4 Racing (online games team)R4RReady 4 RepoR4RReady for ReproductionR4RRopings for Ropers (Temecula, CA team roping club)R4...