英文關鍵字
adolescent
audio
background
boy
caucasian
child
childhood
colorized
computer
connection
couch
digital
display
earphones
elearning
entertainment
family
happy
headphones
headset
home
image
internet
kid
leisure
look
male
man
movie
music
pad
pda
people
portrait
recreation
rest
screen
smile
sofa
son
sound
tablet
technology
teenager
two
watch
web
young