Ключевые слова: 35s, academy, adult, african, american, book, class, college, course, discussion, education, explain, group, indoors, information, knowledge, learning, lecture, lecturer, lesson, listen, listeners, male, man, meeting, people, presentation, professional, professor, room, rostrum, seminar, session, speech, standing, student, studying, talk, teacher, teaching, training, tutorial, university, woman, workshop,