Ключевые слова: adorable, baby, backpack, best friend, cell, chalk, chemistry, chemists, child, childhood, children, classroom, dad, day, enlarge, family, family day, father, friends, hello, information, international childrens day, kid, little, little children, little girl, little kid, love, man, mask, organic, parenting, protectives, research, school biology, scissors, secondary, small, small child, small children, small girl, small kid, specular microscope, studying, teacher, test, trust, tube, university, upbringing,