R字母开头的单词或词组(第13页)：
- ratio
- raw
- ray
- reach
- react
- reaction
- read
- realism
- reality
- real
- realization
- realize
- rear
- reason
- reasonable
- reassure
- rebel
- receive
- recent
- reception
- recite
- recognize
- recommend
- reconciliation
- record
- recorder
- recover
- red
- reduce
- refer
- recreation
- reference
- refine
- reform
- refrigerator
- refuse
- regard
- regarding
- regardless
- region
- regional
- register
- regret
- regular