R字開頭的單詞或詞組
revolutionizerush intorhinorevertrisingrun freereflexregenerateraidrecessionroaringround the clockround-the-clockrevereroerisenrentalruthlessrankingROrumrattlerevivalrecitalrespondentregulatorraspberryregressretirementrefugeeroll aroundrotorregistration formredoraise moneyruthrecruitmentrimred-hotrecipientRADrebellion