e
che
lon
复数形式
echelons
1
阶梯, 阶梯衍射光栅
a diffraction grating consisting of a pile of plates of equal thickness arranged stepwise with a constant offset
2
梯队, 梯队队形
a diagonal formation of things, especially used in military troops
3
等级, 阶层
a level or rank in an organization, profession, or society, indicating a person's status or authority within that hierarchy
- She worked hard for years to reach the upper echelons of the corporate world.
她努力工作多年，以达到企业世界的上层梯队。
- His promotion moved him into the top echelon of academic researchers in his field.
他的晋升使他进入了该领域学术研究人员的最高梯队。
- Her influential family belonged to the upper echelon of social circles in the city.
她颇具影响力的家族属于城市社交圈的上层。
- Many young professionals aspire to climb the echelons of their respective fields to achieve greater recognition and success.
许多年轻专业人士渴望攀登各自领域的阶梯，以获得更大的认可和成功。