patrols
A patrol is when soldiers, police, or guards move around an area or building in order to make sure that there is no trouble in it.
He failed to return from a patrol.
他去巡逻,但没再回来。
A patrol is a group of soldiers or vehicles that are patrolling an area.
Guerrillas attacked a patrol with hand grenades.
游击队用手榴弹袭击了一支巡逻队。
on patrol
Soldiers, police, or guards who are on patrol are patrolling an area.
The army is now on patrol in Srinagar and a curfew has been imposed.
军队现在在斯利那加巡逻,宵禁也已实行。
patrols , patrolling , patrolled
When soldiers, police, or guards patrol an area or building, they move around it in order to make sure that there is no trouble there.
Prison officers continued to patrol the grounds within the jail.
狱警继续在监狱里巡逻。