Once use cases are being identified, the set of activities in a use case can be documented as major steps in a use case.

标识了用例后，用例中的活动集可以作为用例中的主要步骤进行记录。

youdao

Traditional stories make use of formulaic expressions like 'Once upon a time...'.

传统故事采用“从前…”一类的套语。

《牛津词典》

Once you've gotten an idea of how color and tone affects your website, use it to your advantage.

一旦你了解了颜色和色调如何影响您的网站，就要利用它们的优点。

youdao

Forrester Research says four out of five online adults use social media at least once a month.

VOA: special.2009.09.14

Once we have those classrooms, the stuffing cost is to be designed to be the same as what we currently use in personal physics.

一旦我们建成这些教室，其他的人员成本应该,和现在投入到物理教学,所用的成本一致。

麻省理工公开课 - 媒体、教育、市场课程节选

And then secondly, I get, you know, once I get to learn I also get to use that to help people.

其次，一旦我学到了东西，就会用来帮助其他人，

如果成为医生 - SpeakingMax英语口语达人

He did not, for once, use the word "choice" or talk about the election.

BBC: Healthcare ruling is good for democracy

The software itself, once you use it, is easy to use, flexible, and powerful.

FORBES: The Facebook Phone Shows Microsoft How They Should Have Promoted Windows Phone

That just means consumers can buy their music once and use it on every device.

FORBES: Music Industry Thinks Google Is Coming To Save The Music Industry From Apple