eleventh hour

He arrived there at the eleventh hour.

他刚好到达那里。

Their plan was called off at the eleventh hour.

他计划在最后时刻被取消了。

Our pianist had fallen ill, and then, at the eleventh hour, when we thought we’d have to cancel the performance, Jill offered to replace him.

钢演倒了，在最后关头，当以为不得不取消表演时， 吉尔表示愿意代替他演出。