英文關鍵字
1080p
20s
adult
cademic
campus
caucasian
cheerful
classmates
college
computer
definition
digital
education
female
happy
hd
high
highdef
higher
knowledge
male
man
olding
pc
people
school
scrolling
smiling
student
tablet
together
touching
touchscreen
two
ultra
university
using
woman
young