機器
banking
business
businessman
buy
buying
card
checkout
chip
commerce
computer
credit
customer
ecommerce
electronic
finance
financial
gift
holding
internet
laptop
man
market
mobile
money
nfc
notebook
online
order
ordering
pay
paying
payment
plastic
point
pointing
pos
present
presenting
purchase
reader
retail
sale
shop
shopping
spending
store
terminal
transaction