advance guard
柯林斯詞典
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 前衛(wèi); 一種在主力軍行動前被派出偵查敵方防線缺漏、清除小撮反抗力量及預(yù)防敵方突發(fā)進(jìn)攻的軍事部隊(duì)
返回 advance guard
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 前衛(wèi); 一種在主力軍行動前被派出偵查敵方防線缺漏、清除小撮反抗力量及預(yù)防敵方突發(fā)進(jìn)攻的軍事部隊(duì)