英文關鍵字
addicted
addiction
app
application
boy
caucasian
cellphone
child
childhood
children
connected
dependence
device
digital
electronic
female
free
friends
fun
gadget
game
games
girl
internet
kid
leisure
male
mobile
multiethnic
multiracial
online
outdoors
park
people
person
phone
play
playing
sitting
smart
smartphone
technology
time
together
touch
touchscreen
tree
using
wireless
young