英文關鍵字
abstract
and
army
background
brass
break
bright
broken
bulb
bullet
bullets
caliber
cartridges
circuit
cloud
concept
crash
does
ecology
electric
electricity
energy
explosion
glass
glow
gun
hit
holes
hunt
idea
incandescent
invention
lam
lamp
light
lightbulb
metallic
not
power
resistant
rifle
shatterproof
shine
shot
smoke
symbol
that
toxic
unbreakable
weapon