英文關鍵字
clearcutting
clearing
cut
cutting
deforestation
drone
ecology
environment
equipment
fir
firewood
forest
forestry
green
harvest
harvester
illegal
industry
log
logging
lumber
lumberjack
machine
machinery
paper
pine
saw
sawing
spruce
stack
stacked
timber
tree
trees
trunk
vehicle
view
wild
wood
wooden
woodland
work