英文關鍵字
teacher
woman
symbol
monochrome
geography
abc
lesson
test
school
graduation
home
work
examination
background
book
building
class
classroom
teaching
meeting
exam
studying
diploma
learning
seminar
professor
desk
ready
lecture
homework
teach
occupation
presentation
icon
motion
graphic
animation
pictogram
hd
animated
item
sign
glyp