名词中文翻译
中文翻译：梯队
同义词：
['line', 'column例句：1. The soldiers formed a line facing the enemy.（士兵们排成一行面对敌人。）']
例句：
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1. The soldiers formed a line facing the enemy.
士兵们排成一行面对敌人。
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2.The army advanced in echelons.
军队按纵队前进。
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3. The firefighters worked in echelons to extinguish the flames.
消防员按纵队工作以扑灭火焰。