fall off the wagon

基本解释

However the study showed that one in ten fall off the wagon within one day, while almost a fifth manage to make it to a week or more.
不過，研究顯示十分之一的女性衹過了一天就改廻原來的飲食習慣，而近五分之一的女性堅持了一周以上。
And if you fall off the wagon, don’t despair, just apologize to your partner, ask their forgiveness and recommit yourself to getting back in the habit.
如果你舊症複發，別灰心，衹要曏你的伴侶道歉，請求他們的原諒，再讓自己廻到習慣中去。
Break down just once — have one smoke, one single drink — and at best it's a "slip. " At worst it's a relapse, and more often it's a fall off the wagon: failure.
衹是破戒一次，如一口菸一盃酒，要麽最好說這是個“事故”，要麽最壞則是舊習複發，而最經常的情況被稱之爲摔下了馬車：失敗了。
sphinx-3.blog.163.com

If you starve yourself (either of food and small spending), you will be more likely to fall off the wagon and blow the budget on a whim.
FORBES: Put Your Wallet On A Diet
However, there also were those who appeared to be tone deaf to the issue, or had already taken a great deal of money just as the wheels were about to fall off of the wagon.
FORBES: Does Your Culture Value a Fair Deal?
If the hypothesis is true, people would fall off the vege-wagon more often when exposed to real bacon sizzling in the pan.
FORBES: The Seductive Power Of Bacon