The money was being kept in reserve for their retirement.

他们把钱存着以备退休后使用。

《牛津词典》

He thought he would hold the tooth in reserve for the present, and seek further.

他想暂时把这颗牙留着，再去找别的东西。

youdao

They sold half the wood and kept the rest in reserve for winter.

他们卖了一半木材，其余的储备下来过冬。

youdao

Banks that received money from the Troubled Asset Relief Program reaped unexpected profits and repaid billions in loans, resulting in a record for the Federal Reserve.

VOA: standard.2010.01.15

But there is every chance that she's keeping a bit in reserve for the final.

BBC: What do they say about the best laid plans?

Experts say it isn't viable for drug companies that spend millions developing a new antibiotic medicine then to be told by regulators to hold it in reserve for the next emergency.

WSJ: WHO Calls for Action on Superbugs

He's also holding something special in reserve for Sunday.

CNN: STORY HIGHLIGHTS