橡皮筋也可以做成乐器喔！准备好橡皮筋跟空面纸盒，一起动手做做看，做完后来开场大型演奏会吧。
Explore interests Taiwan, Cina Scientific Enlightenment Cinese Ricerca scientifica 3 7 6 5 4 8 Scienza Authorization Newtonino Operative experiment