Application modeling and data modeling should rarely be a one-time shot.

应用程序建模和数据建模并不是件一劳永逸的事。

youdao

If a problem is truly just a one-time event, this approach is acceptable.

如果某个问题真的只是一次性的问题，则此方法是可以接受的。

youdao

Program costs include a one-time enrollment fee and a registration fee for each exam you take.

项目费用包括一项一次性注册费用和你每场考试的报考费。

youdao

A reputation -- what people think of you, good or bad -- is built one message at a time.

VOA: special.2011.07.22

They said--one of the lessons they were told is, never cut a dividend unless you do it as a-- you could do a one time only dividend.

他们说,他们学到了一点,永远不要停止分红,除非你,除非你只是一次性分红

耶鲁公开课 - 金融市场课程节选

One time, I paid a beggar when I was driving in my car and I was stopped to the stoplight,

有一次，我给过乞丐钱，当时我在开车，正在等红灯，

不做善事的理由 - SpeakingMax英语口语达人

DVD-R: This is a one time only recordable format, similar to burning CDs with a CD-R.

FORBES: Standards tangle

So that is probably a one time thing for a lot of it.

NPR: How Do Ford's Woes Play at the Auto Show?

However, additional analysis may reveal the hit to earnings was a one time event, or maybe even an accounting irregularity.

FORBES: Buy Stocks That Pay, And Can Keep Paying