Ключевые слова: adorable, beautiful, blackboard, caucasian, chalkboard, cheerful, child, class, classroom, close up, cute, education, female, formal, girl, green, happiness, happy, high school, indoors, joyful, kid, learner, lesson, lovely, mathematics, maths, middle school, modern, portrait, preteen, pretty, pupil, school, schoolgirl, smart, smile, smiling, standing, student, study, teen, teenage, teenager, uniform, young, youth,