英文關鍵字
automat
background
beverage
business
button
buttons
buy
buyer
code
coin
consumption
customer
dispenser
electronic
enters
equipment
female
finger
food
hand
key
keyboard
keypad
letters
machine
merchandise
number
numbers
operation
panel
press
presses
pressing
purchase
purchasing
sell
settlement
snacks
system
technology
touch
trade
vending