Young male student sitting in the classroom
Schlüsselwörter
man,
student,
time,
management,
education,
hourglass,
timer,
sandglass,
clock,
sand,
hourglass,
late,
punctual,
punctuality,
study,
studying,
book,
textbook,
reading,
learning,
library,
university,
book,
school,
research,
academic,
exam,
preparation,
preparing,
cognition,
trainee,
training,
lesson,
science,
teacher,
teaching,
lecturer,
lecture,
discussing,
explaining,
mentor,
tutor,
young,
back,
smartphone,
mobile,
phone,
speaking,
talking
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