The boys all began to talk at once.

男孩们都马上开始说话了。

《柯林斯英汉双解大词典》

Don't eat and talk at once.

不要一边吃饭一边说话。

youdao

Then all the girls began to talk at once.

随后所有的姑娘们立即开始谈论此事。

youdao

When we talk about p orbitals the phase of the orbital becomes important once we talk about bonding, which hopefully you were happy to hear at the beginning of class we will get to soon.

对于ｐ轨道,当我们讨论到成键时，轨道的相位就变得非常重要了,这个我们马上就要讲到了。

麻省理工公开课 - 化学原理课程节选

I'm an organic chemist, so I love carbon, it's one of my favorite atoms to talk about, but it would be nice to get to the point of bonding and even reactions to talk about all the exciting things we can think about once we're at that point.

我是个有机化学家，我喜欢碳原子，这是我最喜欢谈论的原子之一，但我更喜欢讲成键,甚至化学反应的概念,一旦到了这之后,我们就可以考虑各种激动人心的事情。

麻省理工公开课 - 化学原理课程节选

It's just the sheer--it's amazing, it's an amazing read too. And then, Marc Bloch; I once had the pleasure when I was giving a talk at the University of Strasbourg and sitting in Marc Bloch's office.

那真的是--真的特别棒,也是本好书,还有马克·布洛克,我曾经有幸在斯特拉斯堡大学演讲时,坐在马克·布洛克的办公室里

耶鲁公开课 - 1871年后的法国课程节选

Sheriff's investigators planned to talk to him at length once he was recovering at Mission Hospital in Mission Viejo.

NPR: 1 Calif. Hiker Still Lost, 1 Found And Recovering

Money talk was once taboo at the family dinner table.

FORBES: Family Inc.

Thus, Power Point, in the hands of most business speakers, commits the fatal sin of at once making the speaker and his talk irrelevant to the audience.

FORBES: Power Point And The Triangle Of Death - A Rant