英文關鍵字
911
accepting
action
brave
call
calling
challenge
colleagues
communication
connection
control
conversation
cop
crime
defense
duty
enforcement
eyeglasses
force
guard
help
information
job
law
male
occupation
officer
order
patrol
patrolman
police
policeman
power
profession
professional
protection
radio
readiness
safety
security
set
support
team
teamwork
technology
trust
uniform
vehicle
walkietalkie
work