英文關鍵字
book
books
class
classroom
communication
computer
conversation
device
digital
discuss
discussion
educate
education
electronic
explain
fingers
flip
flipping
gadget
girl
girls
hands
holding
indoor
learning
lesson
looking
page
people
reading
school
schoolgirl
schoolgirls
screen
sitting
student
study
studying
table
tablet
talk
talking
technology
teenager
textbook
touching
two