echelon

階層、級別、層級常用複數

Only the upper echelons of the company knew about the merger.

只有公司高層知道這樁併購案。

梯隊、梯形隊形軍事

The fighter jets flew over the parade in echelon.

戰鬥機以梯形隊形飛越閱兵現場。

排成梯隊、成梯形排列正式

The tanks were echeloned along the ridge before dawn.

戰車在黎明前沿著山脊排成梯隊。