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

之字折：亦称风琴折，扇形折。

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I fixed a slab of board for the desk and made the back of the seat softer, then I oiled the screws so it is easier to fold.

我在桌子上固定了一块木板，并把椅背做得软了一些，之后给螺丝上了润滑油，这样就更容易折叠了。

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The move was a gamble, but it brought Mr Jobs back into the fold, much to the excitement of the company's followers.

这一举动是一场赌局，但是却将乔布斯又带回了苹果，而这一举动更激励了公司其他人的斗志。

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An inventory of around 60, 000 used vehicles has ballooned to around 200, 000 as companies cut back or fold, the USA Today newspaper reported in its Wednesday editions.

BBC: Trucking industry faces world of woes

In revenge, he was expelled from Labour, though he was later brought back into the fold.

CNN: London mayoral election: Battle of the buses

How does he do that, and when does he bring them back into the fold?

WHITEHOUSE: Press Briefing