英文關鍵字
activity
big
black
blond
bookshelf
boy
casual
caucasian
color
communication
computer
course
different
education
effort
ethnicity
european
friendship
girl
hair
happy
indoor
international
laptop
learning
lesson
library
little
mixed
multiculture
multiethnic
notes
people
portrait
positive
pupil
relaxed
school
science
sitting
skin
smile
smiling
students
studying
taking
together
training