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固体液体气体

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A warm, simple parent guide to states of matter for kids. Short explanations, playful demos, and safety tips to spark curiosity tonight. Quick lists and easy ideas you can try on a walk or at the kitchen counter.

儿童物质状态：温暖简单的父母指南

一个温暖简单的父母指南，介绍儿童物质状态…

Jaikaran Sawhny

4 5 月, 2026 •