hierarchy of operation

例句：

1. 1.The company has a hierarchy of operations that spans across several continents.
   这家公司拥有跨越几个大陆的运营层级。
2. 2.The hierarchy of operations is designed to ensure efficiency and effectiveness in the delivery of services.
   运营层级的设计旨在确保服务交付的效率和有效性。
3. 3. The hierarchy of operations is critical for effective decision-making within the organization.
   运营层级对于组织内的有效决策至关重要。