那就不要說吧。哪裏有長度為零的線段? 你自己搞不清的東西往別人嘴裏塞, 有意思嗎？

來源: stonebench 於 2023-12-24 21:34:02 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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