adolescence
14s
16s
activity
asleep
austrian
background
boredom
boy
caucasian
class
classmate
classroom
college
desk
education
european
exam
exhausted
fellow
french
german
group
interior
knowledge
lazy
learning
lecture
lesson
lifestyles
male
naping
noting
overworked
people
portrait
school
schoolboy
schooling
sleeping
studying
summary
teen
teenager
tired
workbook
writing
young