哎呀，讓孩子花點時間想怎麽找，去找試試，其實是很有價值的鍛煉啊。數學的科研難道不值得做嗎？

來源: 兩女寶媽於 2025-01-16 07:41:49 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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