科学 · Waves, 光 与 声音 · 6
您的孩子在 6 岁左右正在学习科学中的Waves, 光 与 声音内容，并逐步掌握相关知识与技能。
Your child is investigating light and sound — discovering how we see objects, experimenting with transparent and opaque materials, and learning how vibrations create sound.
您的孩子在 6 岁左右正在学习科学中的Waves, 光 与 声音内容，并逐步掌握相关知识与技能。
Your child is investigating light and sound — discovering how we see objects, experimenting with transparent and opaque materials, and learning how vibrations create sound.