英文關鍵字
bank
banking
bill
business
buy
cafe
card
cash
cashier
cell
cellphone
checkout
commerce
commercial
communication
consumerism
contactless
credit
customer
device
digital
electronic
finance
financial
hand
machine
mobile
money
nfc
pay
paying
payment
phone
pos
purchase
reader
retail
rfid
shop
smart
smartphone
store
system
technology
terminal
transaction
transfer
wallet
wireless
woman