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echelon 'eʃәlɒn

柯林斯1⭐

释义

n. 梯形, 梯阵, 梯次编队
vt. 排成梯队
vi. 形成梯队

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

复数: echelons 过去式: echeloned

BNC词频排名: 14,534 | 当代语料库词频排名: 16,723