hierarchy of subnet

例句：

1. 1. The organization has a complex hierarchy of departments.
   这个组织有复杂的部门层级结构。
2. 2. The company's management structure is based on a hierarchy of responsibilities.
   公司的管理结构是基于责任层级的。
3. 3. The government has implemented a new hierarchy of priorities to address the crisis.
   政府已经实施了一个新的优先级层级体系来应对危机。