多谢,娃数学不差,但不是数学竞赛娃,不想他花太多时间在无意义的事情上,因为太多其他事情要去做。

来源: jmp 于 2024-06-05 15:08:28 [旧帖] [给我悄悄话] 本文已被阅读：次

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