我也覺得家有數學牛蛙的不用擔心，不過也可以各種數學競賽都參加著。不少數學競賽還都給cash獎勵

來源: 兩女寶媽於 2025-03-05 07:41:33 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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