英文關鍵字
woman
person
girl
couple
man
school
student
female
college
learning
male
education
studying
smiling
happy
sitting
young
class
people
teenager
boy
together
indoors
study
teenage
teamwork
smile
teen
lesson
research
campus
caucasian
lifestyle
talking
teaching
two
work
assignment
classmate
portrait
reading
collaborating
guy
discussing
intelligent
bubble
blow
playful