英文關鍵字
accounting
aged
antique
bill
business
buy
buying
calculate
calculator
cash
cashier
checkout
clerk
closeup
commercial
computer
country
discount
dollar
economics
electronic
expense
finance
financial
life
machine
market
money
numbers
object
old
pay
paying
payment
price
purchase
register
retail
retro
sale
shop
shopping
store
taking
till
time
trade
transaction
vintage