英文關鍵字
abstract
and
background
backgrounds
blue
brown
circle
color
cracked
cross
damage
destruction
dry
effect
energy
environment
environmental
equipment
firewood
forest
frame
fuel
full
generation
heap
horizontal
image
industry
log
lumber
lumberjack
material
nature
objects
outdoors
part
pattern
people
photography
pine
power
rough
sawmaterial
section
short
sky
stack
stacking
textured
timber
tree
wood
woodpile
yellow