英文關鍵字
arm
armed
army
automatic
black
bullet
caliber
camouflage
cartridge
corps
danger
enemy
equipment
fighter
footman
force
forest
grass
green
guard
gun
hat
infantry
infantryman
machine
man
marines
military
nature
occupation
offender
outdoor
people
professional
protective
recruit
rifle
rookie
sniper
soldier
trees
trooper
uniform
walking
war
warrior
weapon
woods
young