Their plan was called off at the eleventh hour. 他们的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. 我们的钢琴演奏者病倒了,在最后关头,当我们以为不得不取消表演时, 吉尔表示愿意代替他演出。