Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/8e7e5ae685b3e23a8bd95eb2056592c4.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 advance guard英英字典_advance guard剑桥英语解释_advance guard柯林斯英文解释_沉淀汉英词典
1. N a military unit sent ahead of a main body to find gaps in enemy defences, clear away minor opposition, and prevent unexpected contact 前卫; 一种在主力军行动前被派出侦查敌方防线缺漏、清除小撮反抗力量及预防敌方突发进攻的军事部队