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