For once, Dad is not complaining.

就这一次，爸爸没有抱怨。

《柯林斯英汉双解大词典》

Just for once he arrived on time.

只有这一次他按时到了。

《牛津词典》

It makes a change to read some good news for once.

破例读到点好消息，真让人高兴。

《牛津词典》

The idea of her little family looking fresh and new for once in their lives made her restless with excitement.

VOA: special.2009.09.05

Also, in a very different mood, the poem "For Once, Then, Something."

还有另一首完全不同的情绪的诗，“只一次，便成永远“

耶鲁公开课 - 现代诗歌课程节选

And, so, people would come down and they'd have their pictures taken with a picture, as if it was part of the true cross of the crashed Vendome column; because for once they had won, for once they had won.

所以,人们会来这里,和那张画合影留念,仿佛这是,旺道姆广场的纪念柱的墓碑,因为他们曾经胜利过,他们曾经胜利过

耶鲁公开课 - 1871年后的法国课程节选

Settling the border issue for once and for all, he says, is crucial for the people of Wazzani.

NPR: After Israel: A Lebanese Village Struggles

For once it seems like the administration and the internet activists are on the same page.

FORBES: Why An Internet Blackout For SOPA And Not CISPA?

But this year, for once, some things are starting to go right for the farmers.

ECONOMIST: Brazil