R字開頭的單詞或詞組
round-the-clockrenewablerequirementrepeatedlyrainsrotorracesroverreopenruthrestlessrevenantrifleride onrenegeraise moneyrelicraisingregistration formriffrarityrepetitivereference no.replayraverectangularred-hotrelentlessreclaimroundedreturn torevitalizerhetorical questionrun offroachRUriddenrecurringrespiratoryresourcefulrolloutreimburse