英文關鍵字
1080
airport
animal
attack
authority
baggage
bomb
canine
car
climb
cop
crime
criminal
danger
demonstration
detection
dog
drug
drugs
duty
este
explosive
german
glass
guard
law
leash
mammal
man
men
military
narcotic
officer
people
pet
police
protect
protection
ready
rescue
retriever
safety
search
searching
security
service
shepherd
smell
smelling
sniff
terrorism
trained
trainer
training
trata
uniform
video
working