单词

rarely race route routine relieve rot rock relief relevant refuge respective refute reproduce retire respectful retreat reduce respectable respect revolution rage revolutionary resort reluctant revolve record risk rotate revenue rhythm rotary rank room reckon revive reinforce revert reverse restraint replace restrict repair restriction renovate renovation refinery refine restrain rejoice recite retain resist resistant resistance representation republican represent republic reproach relative relationship relate refusal representative relativity retail refuse rod rapidity rob reject red render resolve resolute ripe ripen rim recognition raw recognize regenerative resolution romantic rich romance redeem regular reign ransom regularity right regulation recollect royalty royal rigid react regime reside regulate residence region resident root religion religious raid register reed reflect reconcile reflection rent rack release revise realm row reference repetition refer response respond responsible repeat responsibility rise reliability reliance rival raise reliable rebel ruin recreation rely rebellion revolt remedy repel relic resultant remember result recall recruit rational roll reel ray rough relay reciprocal recipe rude resource range reveal roar resent racket recur rumble recovery resignation recover rub resign reply roundabout rag reservoir ruthless reserve reservation rectify restore remarkable rouse renew remark refreshment refresh rally regard regarding roast review return reasonable reason removal remove regardless reception receive rumor ridiculous ridicule remote receipt rust realize radium radiate reality radius realization radish radioactivity role realistic radioactive real radio readily radical reptile remind ready repent revenge riddle regret rash recommend ribbon repay reward remains ridge resume rid request resemblance reputation resemble report rubbish retract requirement reclaim require reporter ride rescue