摘要

<正>What you need:red paperblack paperblack penwhite crayon(蜡笔)scissorsglue(胶水)How to make one:1.Cut a square (正方形)red paper.Fold(折叠)along the diagonals(对角线).2.Fold (折叠)the two sides(边)inwards(向里).Make it a triangle(三角形).

  • 出版日期2019