英文關鍵字
access
accessibility
admission
automatic
baffle
barrier
buy
check
city
coin
commute
customer
door
enter
entrance
exit
fare
finger
hand
human
inserting
machine
metro
passenger
pay
paying
payment
people
public
railway
screen
slot
station
subway
system
technology
terminal
ticket
token
tourist
train
transport
transportation
travel
urban
vending
woman
young