英文關鍵字
animated
animation
background
blackboard
chalk
chalkboard
charlie
classroom
clip
educational
english
footage
hand
is
learning
lesson
letters
motion
movement
moves
moving
my
name
person
stick
text
video
writes
writing
英文關鍵字
animated
animation
background
blackboard
chalk
chalkboard
charlie
classroom
clip
educational
english
footage
hand
is
learning
lesson
letters
motion
movement
moves
moving
my
name
person
stick
text
video
writes
writing