school subject on blackboard learning plan
Palabras clave
subject,
academic year,
schooling,
learn,
chalk,
blackboard,
blackboard,
school,
education,
board,
concept,
green,
learning,
white,
business,
black,
lesson,
class,
text,
study,
classroom,
illustration,
message,
frame,
speak,
student,
homework
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