소리는 어떻게 들릴까? | 내몸과성 | 소리전달물질 | 깨비키즈 KEBIKIDS
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ฝัง
- เผยแพร่เมื่อ 22 ต.ค. 2024
- 소리가 날 때 물체의 떨림에 대해 알아보고, 소리를 전달하는 물질에 대해 학습합니다.
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