機器
automated
automatic
automation
business
buyer
buying
cashfree
cashless
check
checkout
commercial
consumer
consumerism
convenience
customer
economy
fast
food
grocery
hypermarket
kiosk
lifestyle
mall
market
marketplace
pay
paying
payment
public
purchase
purchaser
purchasing
retail
sco
screen
self
selfcheckout
selfservice
service
shop
shopper
simplicity
store
supermarket
terminal
transaction
using
woman