機器
airline
airport
arrival
baggage
board
body
business
canceled
caucasian
check
checkin
communication
commute
control
counter
customs
delayed
departure
elegant
equipment
flight
gate
holiday
information
international
line
luggage
passenger
passport
people
plane
scan
scanner
schedule
security
self
suitcase
technology
terminal
ticket
tourist
transfer
transportation
travel
traveler
trip
tsa
xray