英文關鍵字
branches
bulldozer
chop
cropping
cut
cutter
deforestation
destroy
destruction
environment
equipment
forest
forestry
grind
hardwood
harvester
industrial
industry
machine
nature
outdoor
outdoors
processing
saw
sawn
shredder
shredding
site
snow
timber
tractor
tree
winter
wood
woodland
woodworking
work
worker