adult
black board
board
caucasian
class
classroom
college
computer
concept
discussion
education
group
happy
indoors
laptop
learning
lesson
male
management
meeting
men
modern
people
person
professor
project
school
smiling
student
students
studying
teacher
teachers
teaching
team
teamwork
technology
training
tutor
university
white board
working
young
定額
Asian teacher Giving Lesson to group of College Students in the classroom, University education conceptの素材 [FY31080128342]
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