機器
bank
bill
business
buy
card
card reader
cashier
cellphone
commercial
communication
contact
contactless
credit
credit card
customer
debit
device
digital
ecommerce
electronic
field
finance
financial
internet
isolated
man paying
mobile
money
near
nfc
online
pay
paying
payment
phone
pos
purchase
reader
shop
smart
smartphone
store
technology
terminal
transaction
transfer
wallet
white
wireless