feudal economy

例句：

1. 1. The feudal system was abolished in the Renaissance era.
   封建制度在文艺复兴时期被废除。
2. 2. The feudal economy was characterized by a hierarchical social structure.
   封建经济以等级森严的社会结构为特征。
3. 3. The feudal economy was oftentimes oppressive and unequal.
   封建经济往往压迫性强，不平等。