英文關鍵字
app
application
boys
browsing
class
classmates
classroom
college
computers
education
elearning
five
friends
gadget
girls
group
happy
high
internet
knowledge
lecture
looking
many
men
modern
networking
new
online
people
scholar
school
sitting
smart
smiling
social
students
studying
tablet
team
teamwork
technology
teenagers
teens
typing
university
video
watching
wifi
wireless