哈哈哈，到“老人家”时又回颜色，中年那个不是抛物线的顶就是反抛的底儿，^_^。问好古纸兄。

来源: 文革传人于 2021-04-09 00:57:14 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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哈哈哈，到“老人家”时 又回颜色，中年那个不是抛物线的顶就是反抛的底儿，^_^。问好古纸兄。