機器
bank
banking
bill
business
buy
buying
card
checkout
client
closeup
commerce
computer
credit
credit card
cyberspace
debit
digital
ebusiness
electronic
finance
financial
hand
holding
home
laptop
money
online
pay
paying
payment
people
person
purchase
reader
retail
sale
security
shop
shopping
store
technology
terminal
transaction
transfer
using
wireless
woman
work
young