英文關鍵字
adult
agriculture
branch
brown
chain
chainsaw
clothes
country
cut
cutting
deforestation
down
ecology
employment
environment
equipment
fell
felling
forest
forestry
industry
landscape
log
logging
lumber
lumberjack
man
manual
material
natural
nature
occupation
outdoor
outdoors
red
saw
sawing
spring
stacked
stump
timber
tree
trunk
wear
wood
wooden
work
worker
working