英文關鍵字
app
bar
barcode
box
business
cashier
cashless
client
code
consumer
contactless
data
digital
display
electronic
food
fruit
hand
internet
man
mobile
money
online
pay
payer
paying
payment
person
phone
photography
postal
product
qr
reader
retail
scan
scanner
scanning
service
shop
smart
smartphone
store
technology
terminal
transfer
wallet
woman