| 摘要 |
The bottom panel of the box is cut diagonally from one corner to the opposite diagonal corner, except for a pair of holding tabs, and the two similar, right triangle-shaped panels thus provided are creased along fold lines which bisect the right angle of the triangles and extend to the diagonal cut. After the box is erected, it may be fully collapsed by pushing inwardly or outwardly on the bottom panel to break the holding tabs and then folding the triangular-shaped panels on the fold lines thereof to collapse the erected panels.
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