Blackboard or chalkboard
Schlüsselwörter
abstract,
background,
background,
banner,
black,
blackboard,
blank,
board,
close,
closeup,
communication,
dark,
education,
grey,
grey,
blackboard,
macro,
nobody,
rubbed,
chalk,
slate,
smudged,
surface,
wall,
empty,
billboard
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