But once out of a job, older workers have a much harder time finding another one.

但是一旦失业，年纪大的工人就很难找到另一份工作。

youdao

Once out there, skilled seafarers would have detected abundant leads to follow to land.

一旦到了那里，熟练的船员就会发现有大量的线索可以追踪到陆地。

youdao

I have only managed to do this successfully once out of the five times I have done it.

曾经经过五次尝试后，我终于成功了一次。

youdao

But Professor Roth says even the best political leaders cannot unite a country once a society's problems get out of control.

VOA: special.2009.12.19

An eight standard deviation event happens once out of every six trillion trials.

而八个标准差的偏离就意味着,六万亿分之一的概率

耶鲁公开课 - 金融市场课程节选

So really, once we start writing more interesting programs, you would have to type out long annoying commands like that to just compile more sophisticated programs.

实际上，一旦我们开始写一些更复杂的程序时，你们可能要键入那样一些长的，讨厌的命令,来编译跟高级的程序。

哈佛公开课 - 计算机科学课程节选

Once out of the tunnel, contacts got him to Croatia where he had family.

BBC: Sarajevo 1992: Recognising yourself in a distant war

Once out of custody, Atkins also faces a year of supervised release, he said.

WSJ: Rapper Ja Rule leaves NY prison in gun case

Once out, he persuaded music instrument retailer Furtados to sponsor the gig and donate equipment for prisoners' use.

BBC: Stefan Kaye