echelon
柯林斯詞典
1. N-COUNT An echelon in an organization or society is a level or rank in it. 等級; 階層[正式]
...the lower echelons of society. …社會的底層。
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echelon /?????l?n/ (echelons)
劍橋詞典
- a particular level or group of people within an organization such as an army or company
（軍隊(duì)、企業(yè)等組織的）等級，階層，某一等級（或階層）的所有人
These salary increases will affect only the highest echelons of local government . 這些加薪舉措僅僅會涉及到當(dāng)?shù)卣淖罡邔印?
the upper echelons of society 社會上層
military specialized
a special arrangement of soldiers , aircraft , or ships
（士兵、飛機(jī)或船只的）梯形編隊(duì)，梯隊(duì) 返回 echelon