He lost his nerve at the last minute.

他在最后一刻失去了勇气。

《牛津词典》

They changed the plans at the last minute.

事到临头他们却改变了计划。

《牛津词典》

He's always begging off at the last minute.

他总是在最后一分钟反悔。

《牛津词典》

Play it by ear also means to decide what to do at the last minute instead of making detailed plans.

VOA: special.2009.09.13

Some people thought Lincoln would withdraw the proclamation at the last minute.

VOA: special.2009.10.08

But her supervisor appointed her to the new job at the eleventh hour at the very last minute.

VOA: special.2009.07.26

Chairman RoyBostockRoy Bostock was scheduled for June 30, but Ballmer canceled at the last minute.

FORBES: Magazine Article

We had a corner, which I only started going up for at the last minute.

BBC: Tooting boss revels in cup glory

At the last minute he relented and decided to seek help from a pastor.

FORBES: Faith healers