advance guard

常用短語

advance guard support前隊

The Advance Guard高級保鏢；先遣警衛

advance guard action前衛戰斗

Tell Advance Guard講前衛

Advance guard trut h前衛理念

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