英文關鍵字
app
application
browsing
brunette
busy
call
campus
cell
cellphone
chat
checking
college
cyberspace
free
friends
game
gaming
group
internet
lady
laughing
lawn
location
look
media
message
mobile
network
networking
online
order
outside
person
phone
playing
public
reading
relax
research
school
searching
shopping
sitting
smart
smartphone
social
student
using
wifi
work