[問卦] 此幾何圖如何解?
https://www.ptt.cc/bbs/Gossiping/M.1778077577.A.7CA.html

Re: [問卦] 此幾何圖如何解?
https://www.ptt.cc/bbs/Gossiping/M.1778079597.A.B41.html

Re: [問卦] 此幾何圖如何解?
https://www.ptt.cc/bbs/Gossiping/M.1778081092.A.FB4.html