機器
bank
bill
business
cafe
card
cell
cellphone
checkout
coffee
commercial
connect
credit
customer
debit
device
electronic
financial
hold
merchant
mobile
money
nfc
outdoor
outside
pay
payment
people
phone
plastic
pos
purchase
reader
retail
rfid
sale
scan
screen
shop
smart
smartphone
sync
technology
terminal
transaction
two
use
white
wireless
woman