機器
allied
armed
armor
armored
armour
army
bulldozer
cannon
caterpillar
chain
combat
conflict
connection
crawler
destroy
destruction
detail
diesel
dozer
excavator
fight
fire
force
forces
gear
gears
green
ground
heavy
iron
large
machinery
military
mission
obsolete
old
rusty
steel
strength
tank
technology
tough
track
tracks
tractor
vehicle
war
weapon
wheel