英文關鍵字
aircraft
airline
airport
animation
business
cargo
carriage
carry
communication
concept
connect
connection
continent
coverage
data
delivery
earth
engineer
flight
geography
global
globe
harbor
international
isolated
journey
land
logistics
map
network
ocean
planet
researcher
route
seaport
ship
shipping
technology
track
traffic
train
transfer
transport
transportation
travel
white
world
worldwide