英文關鍵字
alternative
business
carry
carrying
country
cut
deforestation
delivery
environment
equipment
firewood
forest
forestry
freight
from
heavy
industrial
industry
load
logging
lorry
lumber
machine
machinery
material
moving
outdoor
pile
pine
product
raw
rides
road
rural
stack
stacked
timber
tractor
trailer
transport
transportation
tree
truck
trucking
trunk
vehicle
vessel
wood
wooden
work