簡單又神奇的伯努利玩具diy~ #handmade #scienceforkids #科學小實驗 #優質陪伴
Synopsis
有很多人問我是用什麼工具「打洞」 我是用螺絲起子組，最細的是錐子，先戳個小孔再慢慢換粗的螺絲起子將孔擴大。 沒有錐子的 ...
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