n.

1. 巡逻，侦察[U]
   The policemen are now on patrol.

   警察正在巡逻。

2. 巡逻兵[C]
3. 巡逻队；巡逻舰队；巡逻机队[C][G]
   Patrols were set up on the streets.

   街上组建了巡逻队。

4. 【美】（童子军的）班，组[C][G]

vi.

1. 巡逻；巡查[Q]
   We've been patrolling for days but have seen nothing.

   我们已巡逻了好几天，但什么也没有发现。

vt.

1. 巡逻；侦察
   I saw women patrolling the streets with rifles on their backs.

   我看到妇女背着枪在街上巡逻。

n.

1. a person or group sent to keep watch over an area, especially a detachment of guards or police.
   ▸a unit of six to eight Scouts or Guides forming part of a troop.
2. the action of patrolling an area.
3. an expedition to carry out reconnaissance.
   ▸a routine operational voyage of a ship or aircraft.

v.