英文關鍵字
alone
app
communication
device
headphones
journey
messenger
online
passenger
player
playing
relaxation
rest
satisfaction
smart
smartphone
song
teen
teenager
web
英文關鍵字
alone
app
communication
device
headphones
journey
messenger
online
passenger
player
playing
relaxation
rest
satisfaction
smart
smartphone
song
teen
teenager
web