동영상
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The secret underwater world scientists are now exploring | BBC News
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Yejun's Children Science Museum for Kids Education #shorts
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What if we could make Lightning appear? | #aumsum #kids #cartoon #science
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Yejun Build Robot Arm Toy Assembly with Family Science Play
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손이 얼었어요! 얼음손 녹이기 과학실험 Eaasy DIY Science Experiment for kids Ice Hand Gloves !!!
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스키틀즈 캔디로 무지개 만들기/Rainbow Skittles/スキットルキャンディーで魔法の虹をつくったよ