back-fold

基本解释

She pays us back three-fold.
她给予我们三倍的偿替。
tcpss.com
Nearly extinct a hundred years ago, the population has bounced back 300-fold, ensuring long-term survival of this icon of the American plains.
在100年前，住在这里的人口也只有300多，这幅画面正是长期以来美洲平原生存写照。
Even if you have to do what seems to be a little extra work to break your piece into multiple working, reviewable chunks, the mistakes saved will pay you back a hundred-fold.
即使你认为要多做一点儿，将工作拆分成易于审核的小块，这样会避免很多错误，以使你得到数倍的回报。

Or he could try to woo Mr Makoni, if he came third, back into the ZANU-PF fold with a promise of forgiveness and high office, though that now seems implausible.
ECONOMIST: Could Robert Mugabe be unseated?
In other words, GM only came back to the Facebook-advertising fold after several months of wrangling with Facebook executives, with varying intensity, about ways to improve tracking of advertising results on the site and to boost its effectiveness.
FORBES: GM Returns To Facebook Ads; Will Super Bowl Be Next?
Politicians who have erred (foolishly led astray by the patently ridiculous idea that they are supposed to look for ways to improve schools) have rapidly been strong-armed back into the fold: witness the craven retractions by Joe Lieberman and Bill Bradley before the 2000 election.
ECONOMIST: Lexington