一旦你体验过南加州的户外生活，再要回到蒙大拿过冬就会感到很难。

Once you have tasted the outdoor life in southern California, it's hard to return to Montana in winter.

《柯林斯英汉双解大词典》

一旦你趟过这趟水，剩下的也变得简单。

Once you can get through it, the rest would be easier.

youdao

所以当我看到小鹰飞行协会引用莱昂纳多的那句话：“一旦尝过飞行的滋味，便会永远仰望天空”，我不由得赞叹不已。

When the Kitty Hawk Kites school quoted Leonardo as saying, "For once you have tasted flight, you will walk the Earth with your eyes turned skywards, " I sighed in recognition.

youdao

Turns out that once you get past the hormonal blast of adolescence about 10% of dreams have explicit sexual content.

研究还发现一旦你过了,荷尔蒙旺盛的青春期,你有10%的梦都是和性有关的。

耶鲁公开课 - 心理学导论课程节选

They control and dominate the Baltic trade, and herring is an important part of that, because herring will keep once it's salted and all that.

他们几乎控制和掌握了整个波罗的海贸易,而鲱鱼则是其中的重要组成部分,因为鲱鱼一旦用盐浸泡过就可长期保存

耶鲁公开课 - 欧洲文明课程节选

None of you got smallpox vaccinations, because once a country was certified to be smallpox free, there was no reason to-- there was no reason to vaccinate people any longer.

你们当中没人接种过天花疫苗,因为一旦一个国家确认不再有天花,就没有理由,就没有理由再给人们接种

耶鲁公开课 - 生物医学工程探索课程节选