機器
action
activity
branch
chain
chainsaw
climb
climbing
cut
cutter
cutting
danger
dangerous
equipment
fell
fir
firewood
forest
forester
forestry
garden
gear
green
helmet
ladder
lumber
lumberjack
male
man
outdoor
person
pine
protection
rough
safety
saw
sawing
service
sharp
stem
timber
tool
tree
trimming
up
wood
woodcutter
work
worker