英文關鍵字
alcohol
analyzer
automobile
breath
car
check
checking
closeup
confident
control
cop
crime
detection
device
driver
driving
duty
enforcement
force
good
job
justice
law
license
man
occupation
offense
officer
order
patrol
patrolman
police
policeman
profession
professional
public
punishment
responsible
result
safety
security
serious
street
test
transportation
uniform
vehicle
violation
window
work