He arrived there at the eleventh hour.

他刚好到达那里。

Their plan was called off at the eleventh hour.

他们的计划在最后刻被取消了。

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.

我们的钢演奏者病倒了，在最后关头，当我们以为不得不取消表演， 吉尔表示愿意代替他演出。