R字母开头的单词或词组(第22页)：
- rostrum
- rotate
- rotten
- roughen
- rue
- royalty
- rubicund
- rudder
- ruffian
- ruffle
- rung
- runic
- rupture
- racketeer
- rebarbative
- reckon
- rasp
- rapscallion
- rural
- ruse
- rustic
- ruthlessness
- raillery
- ratify
- ravish
- recline
- reconnoiter
- reedy
- regal
- regent
- regiment
- reincarnate
- remission
- rejoinder
- rejoin
- remit
- remonstrance
- remittance
- remittent
- remonstrate
- remunerate
- renunciate
- renascent
- rendition