英文關鍵字
addicted
app
background
browsing
caucasian
child
childhood
classroom
communication
cyberspace
dependency
device
digital
display
education
elementary
enjoy
entertainment
female
gadget
game
girl
holding
indoors
internet
kid
learning
leisure
little
media
mobile
modern
online
phone
play
playing
pupil
school
schoolgirl
screen
sitting
smart
smartphone
surfing
technology
touch
use
using
watching
young