Once when we were going to Paris, I forgot my passport.

有一次我们去巴黎时，我忘了带护照。

《柯林斯英汉双解大词典》

Once you have issues with food, you're going to have them for the rest of your life.

一旦你在食物方面有问题，你以后的生活中就一直会有这样的问题。

《柯林斯英汉双解大词典》

Once you stopped pushing the sledge, how is it keep going?

一旦你停止推雪撬，它是怎么继续前进的？

youdao

Parson Walker's wife was very sick once, for a long time, and it seemed as if they were not going to save her.

VOA: special.2009.08.29

You're hiding something from yourself, and once you know what's going on to deeper phenomena your problems will go away.

这些冲突被你压抑起来，一旦你理解了更深层次的冲突究竟是什么,你的问题便会得到解决。

耶鲁公开课 - 心理学导论课程节选

We've argued that once we realize those aren't going to be played, that 2 and 9 aren't going to be played.

我们明白了一旦我们知道了,无人会采用那些策略时,那么也没有人会选立场2和9

耶鲁公开课 - 博弈论课程节选

So if you go once a week now, you're only going once every two weeks.

WHITEHOUSE: Press Briefing by Deputy Press Secretary Josh Earnest

The big question: Where in the heck would this enormous crown of thorns be going once the Bible Experience no longer had a use for it?

WSJ: Promoting 'The Bible' With Crown of Thorn

At the same time, their brains were scanned with positron emission technology (PET), using a radioactive compound that allowed the researchers to visualize where caffeine was going once it arrived in the brain.

FORBES: A Snapshot of Caffeine's Fascinating Effects On The Brain