英文關鍵字
adult
african
area
bookcase
books
boy
british
casual
cheerful
closeup
college
computers
concentration
confident
contemporary
day
education
friend
friends
girl
group
happy
high
indoor
indoors
joyful
learning
library
man
people
person
portrait
reading
school
smile
student
students
study
studying
together
university
woman
young