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20171205 1-6 Grade Science Class

Submitted by Valerie on Sat, 01/20/2018 - 17:29

探索指尖陀螺與各類高速旋轉裝置的科學 & 動手做指尖陀螺與旋轉裝置的科學實驗

Introduction to the Science of Finger spinner with DIY Science Experiments

 

 

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