echelon
US
UK echelon n: (rank)
SC 阶层 jiē céng
TC 階層
TC 階層
SC 等级 jiē céng，děng jí
TC 等級
TC 等級
SC 梯队
The upper echelons of the army are very loyal to the President.
echelon n: (military formation) (军队队列)
SC 梯阵
SC 梯队
echelon [sth/sb] vtr: (military: form into echelon)
SC 组成梯阵
SC 排成梯队