He bought extra food in anticipation of more people coming than he'd invited.

他预料来的客人会比邀请的多，就多买了食物。

《牛津词典》

All participants could see the colour chosen by some of the other people, but certain participants had an extra advantage: the ability to see more of the participants' chosen colours than others.

所有的参与者都能看到其他人选择的颜色，但某些特定的参与者有一个额外的优势：他们比其他人看到更多参与者选择的颜色。

youdao

All the trimmings—it means all the extra things that traditionally come with something to make it more special.

所有的点缀——是指所有额外的东西，那些传统上和某样东西一起并让它更特别的东西。

youdao

In a country where more than half the population was undernourished before the earthquake, the extra hands could be put to good use.

VOA: standard.2010.07.16

We're still close enough to the summer that the air is not just filling us up with extra static electricity, so it's a little more challenging here.

我们现在离夏天更近了,这样空气中不总是,充满额外的静电，所以这时做实验,会有一些挑战性。

麻省理工公开课 - 化学原理课程节选

I think these extra pictures sometimes they're helpful, sometimes they just make the book cost a lot more.

我想这些补充的图片有时是有用的,有时仅仅是把书价抬高了一点

耶鲁公开课 - 基础物理课程节选

Typically the more extra money comes in means the more that is spent.

FORBES: Should Adults Have an Allowance?

That the rich are more likely to save any extra income and the poor more likely to spend any extra income.

FORBES: Why We Must Reduce the Taxes on the Rich: The Keynesian Argument

Yes, it is possible for the extra returns to more than pay for these extra costs.

FORBES: Funds of Funds Might Not Be The Best Deal Out There