abstract
berlin
book
books
cheerful
child
childhood
children
class
classmates
classroom
computer
day
desk
educating
education
europe
european
face
fiction
friendship
girl
girls
homework
indoors
kid
knowledge
learning
library
lifestyles
literature
pastime
person
portrait
preparation
pupil
school
schoolchildren
schoolgirl
schoolgirls
schooling
schoolroom
sitting
student
studying
teenager
two
two people
writes
young