A paper plane flying 100 million meters (the J-20 plane flying 100 million meters can fly) 1、1 准备一张长方形纸或A4纸飞一亿米的纸飞机的二分之一四分之一2 将纸的两条长边对折再展开，留下折痕3 将一条短边的两个角分别折向对边，短边与长边对齐，展开留下折痕4 翻面，将这条短边沿着折痕交点向上翻折，再展开... CNT2025-07-0296 阅读0 评论
