英文關鍵字
20s
academic
adult
campus
casual
caucasian
cheerful
classmates
clothing
college
communication
conversation
discussion
education
female
four
friends
happy
higher
holding
interacting
knowledge
locker
lockers
male
man
mixedrace
notebook
people
room
school
smartphone
smiling
speaking
standing
student
students
talking
university
woman
young