英文關鍵字
bank
bill
business
buy
cafeteria
card
cards
cashier
cashless
catering
client
close
commercial
connection
consumer
contactless
credit
customer
device
employees
finance
gadget
hand
hold
industry
internet
lifestyle
lunch
machine
make
man
merchant
mobile
money
network
nfc
owner
pay
paying
payment
people
phone
pin
pos
quick
retail
selling
server
smile
staff
technology
terminal
transaction
transfer
use
value
waiter
wireless
women
worker
working