機器
black
business
car
cargo
carriage
cars
container
cord
delivery
electric
embankment
energy
engine
engineer
freight
freighttrain
fuel
gas
goods
green
heavy
industrial
industry
integral
iron
locomotive
machinery
mass
move
movement
multicolored
oil
passenger
post
power
rail
railroad
rails
railway
road
route
shipment
sleepers
station
train
transit
transport
transportation
travel