機器
abstract
airport
automatic
available
boarding pass
business
businessman
buy
check in
choose
class
click
commute
commuter
desk
easy
finger
hand
information
interior
international
luggage
man
one
passenger
passport
pay
people
person
print
queue
railway station
registration
seat
select
self
self help
self service
smart
terminal
ticket
touch screen
train
transportation
travel
traveler
trip
using