Ключевые слова: 1, academy, back, blackboard, blond, book, chalk, chalkboard, cheerful, class, classroom, college, education, female, formula, friendly, glasses, happy, holding, homework, kind, lecture, lecturer, lifestyle, math, number, one, pose, posing, professor, school, science, shot, single, smile, smiling, standing, teacher, teaching, term, text, university, woman, writing, written, year, young,