academic
auditorium
back
back to school
background
banner
black
blackboard
board
book
chalk
chalkboard
class
classroom
college
compasses
concept
copy space
cover
creative
design
desk
drawing
educate
education
elements
equipment
formula
geometry
homework
idea
knowledge
learn
learning
library
math
mathematical formula
object
pencil
poster
school
science
start up
stationery
student
study
supplies
teacher
university
writing
定額
Education background concept. Chalkboard with the Mathematical formula background.の素材 [FY310188268717]
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