英语词汇advance guard怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	advance guard
释义	advance guardn.（名词） A detachment of troops sent ahead of a main force to reconnoiter and provide protection.先遣部队：派在主力部队之前以侦察敌情和提供保护的分遣部队
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