patrol2 ●○○ noun 1 [countableC, uncountableU]PROTECT when someone goes around different parts of an area at regular times to check that there is no trouble or danger 巡逻,巡查on patrol police on patrol in the city centre 在市中心巡逻的警察
The security forces increased their patrols in the area. 安全部队加强了对该地区的巡逻。
2 [countableC]PMSCP a group of police, soldiers, vehicles, planes etc sent out to search a particular area 巡警队;巡逻车队;巡逻机队 a US border patrol 美国边防巡逻队
patrol boat/car (=used by the army or police) 〔军队或警方用的〕巡逻艇/巡逻车
3. [countableC]DL a small group of boy scouts or Guides 童子军小队 → highway patrol