機器
automated
background
bus
card
cashless
closeup
contactless
copy
day
device
electronic
fare
female
hands
inside
mobile
modern
new
online
pass
passenger
pay
payment
person
phone
public
reader
screen
service
smart
smartphone
space
streetcar
system
technology
terminal
text
ticket
ticketing
tram
transit
transport
travel
trolleybus
urban
using
validator
woman
yellow