機器
app
automatic
buy
card
cashier
charge
cinema
communication
connected
consumer
credit
customer
device
digital
electronic
female
finger
girl
intelligent
lady
metro
money
nfc
parking
pay
paying
payment
people
phone
retail
self
smart
station
subway
system
technology
terminal
ticket
ticketing
touch
train
train station
transaction
transfer
transport
wireless
woman