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投物任務

投物任務. 材料與工具. 橡皮筋纏繞方法 1. 橡皮筋纏繞方法 2. 危險!. 開始囉!. 裁剪成 1 大段 + 2 小段. 使用其中的 1 大段和 1 小段作成投石桿. 哎呀!歪了!. 哎呀!歪了!. 加上角度調整桿. 調整角度. 投石器新目標~~~. 把衛星給丟上月球.

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投物任務

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