household contract system

例句：

1. 1.The household contract system is designed to protect the rights of individual families.
   家庭合同制度旨在保护个体家庭的权益。
2. 2. The introduction of the household contract system has greatly improved the efficiency of the housing market.
   家庭合同制度的引入极大地提高了房地产市场的效率。
3. 3. The household contract system provides a legal framework for managing family relationships and disputes.
   家庭合同制度为管理家庭关系和纠纷提供了法律框架。