echelons ˈeʃəˌlɔnz
释义
n. (机构中的)等级, 阶层( echelon的复数形式 ); (军舰、士兵、飞机等的)梯形编队
英文释义
n. a body of troops arranged in a line
n. a diffraction grating consisting of a pile of plates of equal thickness arranged stepwise with a constant offset
词形变化
原型: echelon 原型变体: s
BNC词频排名: 0 | 当代语料库词频排名: 0