我家的估計學不了數學，坐不住，靜不下心來想難題。

來源: binbin2013 於 2020-10-16 09:38:14 [舊帖] [給我悄悄話] 本文已被閱讀：次

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我家的估計學不了數學， 坐不住， 靜不下心來想難題。