请问有大娃家长能分享一下Newtonian Physics 这个项目和竞赛的情况吗？娃六年级，很有兴趣。感谢

来源: Peace2019 于 2024-09-28 09:16:50 [旧帖] [给我悄悄话] 本文已被阅读：次

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