1) 중1
https://www.dropbox.com/scl/fi/bkkqk3fgguscto0bcn81p/1-2-9.MP4?rlkey=00qwlf7twsarytz5kzdbx48bx&st=9crpdbfh&dl=0
2) 중2. 중3
https://www.dropbox.com/scl/fi/d36uh3lqgfcb0u3fmixsb/2-3-2-9.MP4?rlkey=p4ez8gf1g3u4nrypx49xojypf&st=0p0rjack&dl=0