R字母开头的单词或词组(第15页)：
- rampart
- ramshackle
- rancid
- rancor
- random
- ranger
- rankle
- ransom
- rant
- rapacious
- rapids
- rapport
- rapprochement
- rapt
- reactant
- ratification
- rarefaction
- raspy
- rattle
- ration
- rational
- ratiocination
- ravage
- raucous
- rave
- ravel
- ravenous
- ravine
- raze
- readily
- ravishing
- ready
- razor
- reactionary
- reagent
- realign
- realm
- ream
- rebellious
- reap
- reaper
- rebate
- rebuff
- rebuke