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 Tags Science Class science experiement Language Plus Living Space 文瑄語文工作室 learn Englis 學英文