英文關鍵字
afroamerican
best
biracial
caucasian
chatting
cheerful
classmates
closeup
college
communicating
communication
day
emotions
face
females
friends
friendship
fun
girls
group
happiness
happy
joke
joking
joy
laugh
laughing
leisure
multiethnic
multiracial
outdoors
people
pleased
positive
sincere
sincerity
smile
smiling
street
students
talking
teen
teenage
teenager
together
trust
vacation
young
youth