英文關鍵字
accidents
bars
beams
carpenter
chain
chainsaw
cut
cutter
cutting
detail
dust
equipment
firewood
forest
industrial
industry
job
laborer
log
logging
lumber
lumberjack
lumberman
machine
mill
mummified
occupation
outdoors
pile
pine
prevent
process
production
protection
protective
safety
saw
sawdust
sawing
sawmill
texture
timber
tool
tree
wood
woodcutter
wooden
work
worker