英文關鍵字
agriculture
analysis
axe
bark
blade
carpentry
chainsaw
cut
dark
down
ecology
environment
equipment
firewood
forest
forestry
gear
green
hand
helmet
industry
job
log
logger
lumber
lumberjack
man
measure
natural
nature
noise
outdoors
person
plant
power
protection
ruler
sale
saw
sawdust
spruce
timber
tool
tree
trunk
wood
woodcutter
wooden
work
worker