R字母开头的单词或词组(第11页)：
- respective
- responsibility
- respond
- responsible
- rest
- restaurant
- restrict
- result
- retire
- return
- reunification
- reunion
- reveal
- review
- revolution
- revolutionary
- revolve
- rhythm
- rice
- rich
- rid
- ride
- right
- ring
- ripe
- rise
- risk
- river
- road
- roar
- roast
- rob
- robbery
- robot
- rock
- romantic
- rocket
- role
- roll
- Roman
- romance
- roof
- rough
- root