英文關鍵字
africa
african
benches
black
blackboard
blank
board
cement
chalk
chalkboard
classroom
dirt
education
empty
floor
handwriting
learning
lesson
poor
poverty
third
tilt
world
writing
英文關鍵字
africa
african
benches
black
blackboard
blank
board
cement
chalk
chalkboard
classroom
dirt
education
empty
floor
handwriting
learning
lesson
poor
poverty
third
tilt
world
writing