短语词组短語advance guard action 前衛戰鬭The Advance Guard 高級保鏢;先遣警衛Tell Advance Guard 講前衛Advance guard trut h 前衛理唸advance guard support proper 前隊本隊Advance guard is picked army 前哨精銳部隊guard against advance 提前預防 返回 advance guard