Over and back fold: Also called Accordion fold, Zigzag fold.

之字折：亦称风琴折，扇形折。

youdao

He knows urban folk are fed up with Congress over other massive scams and may not be pulled back to the fold.

他清楚城里人已经厌倦了国大党玩的那套把戏，可能不会被拉回到他们的阵营中。

youdao

The quickest way to double your money is to fold it over and put it back in your pocket.

让钱增多最快地方式就是别花钱。

youdao

Children of the current generation will be poorer for it if they never get to linger over a vast paper map and then try in vain to fold it back into its original shape.

WSJ: Lost in Our Maps: A History of Cartographic Catastrophes