英文關鍵字
adult
class
classroom
college
computer
desk
digital
dolly
education
further
group
laptop
lecture
lesson
mature
medium
research
shot
sitting
student
studying
tablet
together
university
working
英文關鍵字
adult
class
classroom
college
computer
desk
digital
dolly
education
further
group
laptop
lecture
lesson
mature
medium
research
shot
sitting
student
studying
tablet
together
university
working