Blank slate
Palabras clave
academic,
black,
blackboard,
blank,
board,
chalk,
blackboard,
classroom,
crude,
drawing,
education,
frame,
school,
slate,
study,
instructing,
vintage,
wood,
wooden,
work,
write,
advertise,
background,
communication,
lesson,
letter,
message,
number,
poster,
print
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