英文關鍵字
academic
business
busy
casual
classroom
college
conference
cooperation
desk
diverse
education
event
face
female
friends
front
girls
group
hair
indoors
learning
lecture
looking
meeting
millennial
mixed
mood
multiethnic
multiracial
office
people
portrait
room
sitting
smile
smiling
students
study
studying
table
team
together
training
university
woman
women
work
working
young