機器
bank
banking
business
buy
card
cash
change
coin
consumerism
credit
currency
customer
debit
debt
device
economy
euro
exchange
finance
financial
gold
investment
isolated
key
mall
market
metal
money
number
pay
paying
payment
plastic
purchase
retail
rich
sale
savings
selling
shopping
spending
stack
store
symbol
transaction
treasure
vendor
wealth
white