英文關鍵字
abstract
access
arrest
background
balkans
barb
barbed
barbwire
barrier
border
cage
camp
cinematic
construction
crime
criminal
danger
defense
facility
fence
freedom
guard
highsecurity
imprisonment
iron
isolated
jail
law
mesh
metal
military
newsworthy
old
prison
prisoner
protection
punishment
razor
safety
secure
security
sky
tape
vector
vhs
vintage
wall
war
wire