patrol
noun /pəˈtrəʊl/
  /pəˈtrəʊl/
- [countable, uncountable] the act of going to different parts of a building, an area, etc. to make sure that there is no trouble or crime巡逻;巡查 - Security guards make regular patrols at night.夜间保安人员定时巡逻。 
-  on patrol a police car on patrol巡逻的警车 
 Topics Law and justicec1, War and conflictc1- The Italians flew regular patrols over the desert.意大利当局定期在沙漠上空飞行巡逻。 
- They maintain a continuous patrol of the oceans with three submarines.他们派出 3 艘潜艇保持不间断的海上巡逻。 
- helicopters used for traffic patrols用于交通巡逻的直升机 
 Collocations Dictionaryadjective- routine
- special
- armed
- …
 - carry out
- conduct
- fly
- …
 - aircraft
- boat
- car
- …
 - on patrol
 
- Security guards make regular patrols at night.
- [countable] a group of soldiers, vehicles, etc. that patrol an area巡逻队;巡逻车队 - a naval/police patrol海军/警察巡逻队 
- a patrol car/boat巡逻车;巡逻船 
 - Every police car and foot patrol in the area is on full alert.该地区每辆警车和每名步行的巡警都处于高度警戒状态。 
- One soldier was killed when his patrol was ambushed.一名士兵巡逻时遭到伏击身亡。 
- The highway patrol has sealed off the area.公路巡警已经封锁了该地区。 
- They sent out four-man patrols to scout the area.他们派出由 4 人组成的巡逻队去那一地区侦查。 
 Collocations Dictionaryadjective- routine
- special
- armed
- …
 - carry out
- conduct
- fly
- …
 - aircraft
- boat
- car
- …
 - on patrol
 
- a naval/police patrol
- [countable] a group of about six Boy Scouts or Girl Guides / Girl Scouts that forms part of a larger group童子军小队