黒板のイラスト
Schlüsselwörter
blackboard,
learning,
training,
book,
background,
study,
college,
book,
school,
background,
design,
school,
chalk,
shelf,
space,
illustration,
student,
document,
classroom,
room,
table,
wisdom,
paper,
lead pencil,
blank,
copy space,
blank space,
learn,
learn,
class,
communication,
class,
information,
space
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