四级单词

R

• rack
• radar
• radial
• radical
• radioactivity
• rage
• raid
• railroad
• rally
• rarely
• ratio
• rational
• reaction
• reader
• readily
• realisation
• realistic
• realm
• reap
• rear
• rebel
• recall
• receipt
• recently
• recession
• reckon
• recognition
• recollect
• recommendation
• reconcile
• recovery
• reduction
• refine
• reflection
• reflexion
• refugee
• regarding
• region
• registration
• regulate
• reinforce
• related
• relativity
• release
• relieve
• reluctance
• reluctant
• remarkable
• remedy
• removal
• render
• repeatedly
• repetition
• replacement
• representation
• reproduce
• reproduction
• republican
• resent
• reservoir
• residence
• resident
• resistance
• resistant
• resolute
• resolution
• resolve
• resort
• resource
• respective
• respectively
• response
• responsible
• restless
• restore
• restrain
• restraint
• restrict
• resume
• retail
• retain
• retreat
• reunification
• reunion
• reunite
• reveal
• revenue
• reverse
• reviewer
• revise
• revolt
• revolutionary
• revolve
• rhythm
• rib
• ribbon
• ridge
• rifle
• right-handed
• rightist
• right-wing
• riot
• rip
• risky
• ritual
• rival
• roar
• rod
• roller
• Roman
• romantic
• rotate
• rotten
• rouse
• rug
• ruin
• rumour
• rural
• rust