英文關鍵字
bank
banking
bill
business
buy
cafe
card
cashless
cell
cellphone
checkout
commercial
connect
contactless
credit
customer
debit
device
digital
electronic
finance
financial
hand
hold
machine
man
mobile
money
nfc
pay
paying
payment
phone
pos
purchase
reader
retail
rfid
sale
shop
smart
smartphone
store
technology
terminal
transaction
transfer
white
wireless
woman