It's the board that you're playing can fold and unfold and refold in all sorts of different ways.

你玩棋盘可以以各种不同叠、展开和叠。

" At school needlework was pretty much the only thing I was any good at." I smoothed out the creases on my lap and prepared to refold a jacket.

几乎是我唯一擅长事情。 ” 我抚平膝盖上痕， 准备重新叠一件夹克。