r字母开头英语单词

refection restrictor retractability revokable remittent ratal rearguard raff renunciate revivify ruck rale reperforator refluent reflower RISC remains radix rye Rwanda RV ruthless ruthenium Ruthenian Ruth rutabaga rusty rustler rustle rusticity rustication rusticate rustic Russian Russia Russell rusk Ruritanian rurban Rupert rupee runway runt runoff Runnymede runny running runner-up runner runic rung rundown runcinate runcible runaway runaround runabout run-up run-through run-of-the-mill run-in run-down rumpus rumple Rumpelstiltskin rump rumour rumor rummy rumination ruminate ruminant rumen rumbustious rumble rumba rum-runner rum ruly ruling ruler ruinous ruination rugrat rugged rugae Rufus ruffle ruffian ruff ruefully rueful Rudra Rudolph rudimentary rudiment rudesby rudely ruddock ruction ruckus rucksack ruche rubric ruble rubicund Rubicon Rubenesque rubella rube rubbish rubbery rubbers rubberneck rubber rubato rubaiyat rub-down rub-a-dub rRNA rpm rpg royalty royally royalist royale Roxy Roxanne rowel rowdy rowboat rowan row-house rove routinization router roustabout roust rouser rouse roundup roundness roundhouse Roundhead rounder roundelay roundel roundabout round-table roulette