英文關鍵字
accidents
carpenter
chain
chainsaw
cut
detail
equipment
firewood
forest
forester
forestry
hand
hardwood
heavy
helmet
human
industrial
industry
isolated
job
joiner
log
logging
lumber
lumberjack
lumberman
machine
natural
occupation
outdoors
piece
pine
process
production
professional
protective
safety
saw
sawdust
sawing
sawmill
street
strength
timber
tool
tree
wood
wooden
work
worker