英文關鍵字
alert
animation
background
ball
break
cement
chain
clear
concept
concrete
construction
cracked
crash
danger
demolish
demolition
destroy
destruction
empty
escape
explode
freedom
grunge
hanging
heavy
hitting
hole
idea
industrial
iron
metal
obstacle
raze
ruined
side
sphere
steel
stone
structure
success
transition
view
vintage
wall
white
wrecked