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