a. classified according to various criteria into successive levels or layers
[计] 分级的, 分层的, 层次的
1. The company has a hierarchical structure that helps manage employees effectively.
这家公司有一个等级结构，有助于有效管理员工。
2. In a hierarchical system, decisions are often made by those at the top.
在等级制度中，决策通常由高层人员做出。
3. Many schools use a hierarchical approach to organize their classes and activities.
许多学校采用等级方式来组织课程和活动。