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學校只提供木板、馬達、吸管、竹筷、鐵絲、紙板和膠帶等，而且有限量ㄉ
不能用除了學校給的以外的材料
彼時那與圓周率僅差毫厘的圖案分數，至今仍鮮明如昨，歷歷在目。
剩下的都是用每秒0.1公分的速率行走（？