英文關鍵字
agriculture
arboretum
bark
brown
chip
circle
color
coniferous
crack
crop
cut
deforestation
detail
environment
environmental
evergreen
felling
field
firewood
forest
forestry
green
grooved
hardwood
heap
history
log
logging
lumber
oak
ochre
paper
pile
piled
pine
ring
roundwood
saw
sawn
slice
stack
stacked
texture
textured
timber
tree
trunk
white
wood
wooden