英文關鍵字
agriculture
arboretum
background
brown
chip
circle
color
coniferous
crack
crop
cut
deforestation
environment
environmental
evergreen
felled
felling
firewood
forest
forestry
green
grooved
heap
log
logging
lumber
lumberjacking
nature
nobody
pile
piled
pine
raw
ring
roundwood
saw
sawn
slice
stack
stacked
surface
texture
textured
timber
tree
trunk
white
wood
wooden
years