rudiment：雏形，萌芽，基本原理，基础

rude,原始的，-ment,名词后缀。引申诸相关词义。

• rentier
• renunciation
• reoccur
• reoffend
• reopen
• reorder
• reorganize
• reorient
• reorientation
• repacify
• repackage
• repair
• reparation
• repartee
• repast
• repatriate
• repay
• repeal
• repeat
• repeatedly
• repeater
• repel
• repellent
• repent
• repercussion