英文關鍵字
africanamerican
asian
business
caucasian
class
collaboration
college
conversation
course
creative
discussion
education
exam
friends
girls
group
guys
happy
help
ideas
indian
international
laughing
learning
lifestyle
meeting
men
multiracial
office
people
person
preparation
professional
project
research
school
students
studying
table
talking
teacher
team
teamwork
teen
teenager
test
together
university
women
work