adult
asia
asian
bad
board
cane
chinese
classroom
education
expression
eyeglasses
face
female
fierce
glasses
hand
holding
instructor
lady
learn
lecture
lesson
listen
looking
one
people
person
pointer
pointing
portrait
professional
professor
punish
school
serious
showing
standing
stern
stick
strict
student
style
suit
teach
teacher
threaten
threatening
whiteboard
woman
young