弹弓/弹射器 - 这是每个孩子都喜欢用橡皮筋做的玩具，但是如果你认为做弹弓很难，我相信还会有其他比较实用的方法。
Slingshot / Catapult – Every kid’s favorite thing to do with a rubber band, but if you think hard enough, I bet there are some practical uses for making one of these.
在此方法中，紧迫的橡皮筋是放在全面的颈部桩，以免其血液供应被切断，并。
In this method, a tight rubber band is placed round the neck of the pile so that its blood supply is cut off and it shrivels.
在此方法中，紧迫的橡皮筋是放在全面的颈部桩，以免其血液供应被切断，并。
In this method, a tight rubber band is placed round the neck of the pile so that its blood supply is cut off and it shrivels.
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