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A young African American renewable energy expert is speaking on the stage to a full auditorium while holding a windmill model in her hands.
E-Learning concept with student holding his modern laptop computer, Tutor needs to be enthusiastic and needs to like his subject, Teacher drawing at classroom in school,
Speaker giving a talk on corporate business conference. Unrecognizable people in audience at conference hall. Business and Entrepreneurship event.
A happy Asian girl follows online lectures on the laptop at a cafe.
Lecture chairs in a class room with stair path in the middle of a class

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