英语词汇“first echelon”的翻译、意思、用法、释义-英汉汉英双解词典

单词	first echelon
释义	first echelon 基本例句第一梯队 After ourfirst echelonwas 250 or 300 kilometers ahead, the second and third echelons still had to wipe out enemy troops left behind.甚至我们的第一梯队已过去五六百里，第二第三梯队还要消灭被第一梯队甩在后面的敌人。
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