有点罗嗦,还行.关键是得配教科书..有时候有讲述公式,孩子如果不做笔记,就得翻书找公式来解决书后的问题.

来源: Pilsung 于 2025-01-16 14:57:08 [旧帖] [给我悄悄话] 本文已被阅读：次

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