factum：自己的行为，遗嘱的正式订立，事实陈述书，呈文 

词根词缀： -fact-做,作 + -um名词词尾

• restrict
• restriction
• restrictive
• restring
• restroom
• restructure
• result
• resultant
• resume
• resumption
• resupply
• resurface
• resurgent
• resurrect
• resurrection
• resuscitate
• retail
• retail
• retailer
• retailing
• retain
• retainer
• retaining
• retake
• retaliate