Ключевые слова: academic, back, blackboard, board, business, businessman, chalkboard, class, classroom, coach, coaching, college, course, discussing, education, educational, explaining, green, high, knowledge, learn, learning, lecture, lecturer, lesson, man, meeting, mentor, mentoring, presentation, presenting, professional, school, science, seminar, showing, student, study, studying, suit, teacher, teaching, trainee, trainer, training, tutor, tutoring, university, young,