英文關鍵字
amusement
black
boy
class
college
computer
desk
device
digital
electronic
entertainment
fingers
flipping
gadget
game
hands
holding
indoor
knowledge
learn
learner
lecture
lesson
lifestyle
looking
play
playing
pupil
recreation
relaxation
rest
scrolling
sitting
smart
student
students
table
tablet
task
technology
teenager
touch
touching
using
view
white
writing