哈哈你以前幾歲開始學algebra的啊？

来源: violinpiano 于 2015-05-06 13:13:04 [旧帖] [给我悄悄话] 本文已被阅读：次

你兒子一定比你還早好幾年

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哈哈 你以前幾歲開始學algebra的啊？