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

你玩的棋盘可以以各的方式叠、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.

针线活我唯一擅长的事情。 ” 我抚平膝盖上的痕， 准备重新叠一件夹克。