We didn't know how we would cope once the money had gone.

一旦钱花光了，我们就不知道该怎么办了。

《牛津词典》

Once the decision is reached, he can date and sign the sheet.

一旦做出决定，他就可以在那张表上签上日期和名字。

《柯林斯英汉双解大词典》

Once the turkey has defrosted, remove the giblets.

一旦火鸡解冻，立刻移除鸡杂。

《柯林斯英汉双解大词典》

But,once the fire is out, the well still needs to be covered,or capped, to stop the flow of oil.

VOA: special.2009.03.22

And then, what they did is they made a map of where the particles scattered once they struck the screen.

他们做的是,绘制粒子每次散射位置的图,每当他们撞击屏幕的时候。

麻省理工公开课 - 固态化学导论课程节选

But once the financial crisis hit, things changed a little bit, and so there is more competition.

但一旦金融危机爆发了，情况稍微有所改变，因此竞争就会更激烈了。

哥伦比亚的氛围 - SpeakingMax英语口语达人

Once the project is completed, performances will increase and museum opening hours will be extended.

UNESCO: UK National Commission for UNESCO - A revival movement: Edinburgh World Heritage Site helps regenerate Scotland��s oldest music hall

Numerous rivers, once the source of human prosperity and rich wildlife, are now heavily polluted.

UNESCO: World Water Day 22 March 2010: Clean Water for a Healthy World

Once the infrastructure has moved to satellite communication, everything else falls into place much more naturally.

BBC: The key to preventing lost planes