active
answer
ask
attention
back
behaviors
blank
book
bulb
chair
chat
class
classroom
desk
education
empty
evolution
figure
front
hand
icon
idea
idle
illustration
interested
lazy
learn
lecture
lesson
man
mark
message
nap
phone
question
raise
row
school
side
silhouette
sit
sleep
stick
students
study
teach
teacher
understand
zzz
定額
Variety of students' behaviors sitting at desks in a classroom while teacher lecturing, in black stick figure on white background with icons express their thoughtsの素材 [FY31094934809]
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