Hellow guys, Welcome to my website, and you are watching 수직과 수선에 대해 아시나요?(즐거운 수학용어). and this vIdeo is uploaded by 궁금해요 우티처 at 2023-11-02T00:38:00-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
