在第一个针孔处多留一截线用来打结！

LEAVE SOME THREAD AT THE FIRST HOLE TO TIE IT OFF!

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截线问题，二维旅行问题，途遇障碍的旅行问题。

Stick Breaking Problem, Two Dimensional Travel Problem, Travel with a Barrier Problem.

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看起来像是断成两截的USB线的创意优盘。

Creative USB flash drive looks like broken in half USB cable.

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看起来像是断成两截的USB线的创意优盘。

Creative USB flash drive looks like broken in half USB cable.

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