英文關鍵字
people
visitors
customer
wait
electronic
digital
queue
line
monitor
system
order
number
scoreboard
fast
food
eat
restaurant
cafeteria
counter
menu
purchase
blur
effect
background
consumption
英文關鍵字
people
visitors
customer
wait
electronic
digital
queue
line
monitor
system
order
number
scoreboard
fast
food
eat
restaurant
cafeteria
counter
menu
purchase
blur
effect
background
consumption