Discussions have once again stalled.

讨论再次停顿下来。

《牛津词典》

These weeks of drought have once again raised the spectre of widespread famine.

几星期来的干旱再次引起了群众对大饥荒的恐慌。

《牛津词典》

The hapless, mangled galaxy may have once looked more like our Milky Way, a pinwheel-shaped galaxy.

这个不幸的、被破坏的星系可能曾经看起来更像我们的银河系，一个风车形状的星系。

youdao

Experts still do not know what identifying objects those arms might have once held.

VOA: special.2010.06.23

Or I have once been to a party and I found my shirt was misaligned, seriously misaligned, not one button but--Anyway, so--and so I feel when this happens I'm very immature.

或者有一次我去参加聚会,我发现我的衬衫扣错了，扣得很错，不只是扣错一粒纽扣，发生这种事时，我觉得太没面子了。

耶鲁公开课 - 心理学导论课程节选

Yeah, I actually, we have a concert here on Main Green once a year called "Spring Weekend"

是的，我们每年都会在梅因格林举办一场音乐会，叫做“春日周末”，

校园生活 - SpeakingMax英语口语达人

Many Republicans lost both their nerve and the principles that may have once guided them.

FORBES: Newt Gingrich Highlights Republican Futility On Spending

In their zeal, activists have once again failed to recognize the Law of Unintended Consequences.

FORBES: Fat-uous Approaches To the Obesity Problem

This suggests there may have once been conditions on Mars able to support life.

CNN: What we've done on Mars, and what's next