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RE: RE: 带娃玩PhET，一个有意思的教育仿真程序

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RE: 带娃玩PhET，一个有意思的教育仿真程序

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angelina6688(76)

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1y

为此还改过一次爷爷手机密码，爷爷搞不住他，有时为了做饭或者自己清闲，就给他手机了...老人也不好多说。

暑假我们为了这事和他奶奶干了三架了

1y

angelina6688(76)

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