機器
aerial
banking
bill
business
businessman
buying
card
cards
cashier
coding
computer
contactless
credit
currency
customer
debit
economy
electronic
exchange
finance
financial
formal
hand
holding
human
machinery
male
men
money transfer
office
paying
payment
people
professional
purchase
reader
reading
real
retail
security
selling
service
shopping
smart
suit
technology
together
transaction
wireless