英文關鍵字
color
serious
boy
blue
green
tshirt
raises
hands
shows
colored
paper
palette
rectangular
shape
learn
elementary
concept
colour
training
distance
preschool
online
education
180
fps
slowmotion
art
background
coloured
paint
creativity
introduction
lesson
plain
rainbow
primary
illustration
math
drawing
student
desk
abstract
indoor
multicolour
class
entertaining
accuracy
school
textured
occupation