4k, A large group of school boys and girls during a science class with their teacher.
Palabras clave
boy,
chemistry,
children,
class,
classroom,
concentrating,
concentration,
desk,
education,
european,
experiment,
girl,
group,
happy,
indoor,
inside,
laboratory,
laboratory,
learning,
lecture,
lesson,
listening,
looking,
making,
middle,
people,
person,
portrait,
primary,
pupil,
scholar,
school,
science,
secondary,
sitting,
smiling,
student,
studying,
teacher,
teaching,
teenage,
teenage,
test,
together,
tube,
tutor,
white,
young
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