英文關鍵字
adult
african
american
business
businessman
casual
caucasian
colleague
college
communicate
company
conversation
corporate
creative
day
discussing
discussion
education
friends
happy
indoors
international
lifestyle
male
man
meeting
modern
multicultural
multiethnic
multiracial
office
partner
people
person
professional
school
sitting
smile
smiling
students
talking
together
two
university
young