patrolman
noun [ C ] uk/pəˈtrəʊl.mən/ us/pəˈtroʊl.mən/
US巡警
a police officer who regularly walks or drives around an area in order to prevent or deal with crime
UK old-fashioned巡逻工
a person who works for an organization of car owners and drives to any of its members to help them if their car stops working