遊び心のある
at class
at desk
at school
bad
bad behavior
behavior
bullying
chewing gum
children
class
classmate
classroom
colorful
concept
conflict
confused
demonstrating
disobedient
dispute
eating
fighting
illustration
isolated
lesson
mischievous
mobile phone
naughtiness
naughty
not listening
problem
pupil
scene
school
sitting
sleeping
smartphone
stubborn
student
study
surfing on internet
talking
undisciplined
university
unruly
vector
young
youth