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公共汽车1将一张正方形的纸对折成长方形,然后打开。2将纸的上下两条边分别向里折同样多的一部分,使向里折的这两条边与第1步折出的折痕平行。3将第2步向里折的部分的靠里的4个角分别向外折同样多的一部分,再将刚刚向外折的4个角分别向里折同样多的一小部分。
Bus 1 Double-fold a square of paper into a rectangle, and then open it. 2 Fold the upper and lower sides of the paper as much as you like so that the two sides folded in parallel with the fold folded in Step 1. 3 Step 2 to the inside of the folded part of the four corners were folded out as much as the same part, and then just folded out of the four corners were folded into the same as many as a small part.