"They had something to prove and they proved it," "They proved they were good Americans."

VOA: standard.2009.11.04

You kept your Social Security card and you pasted stamps on it that proved that you paid it.

你取得社会保障卡,并将邮票贴在上面,以此来证明你已支付过钱。

耶鲁公开课 - 金融市场课程节选

But any concerns that parents would not want to buy it for little girls were soon proved wrong.

VOA: special.2009.04.06

They had proved that people could live and work in space for the time it would take to get to the moon and back.

VOA: special.2009.06.24

And it proved that experienced pilots had the skills necessary to fly in space.

VOA: special.2010.07.07

If it does not hold water, then it is weak and cannot be proved.

VOA: special.2009.05.10

Men would fly the Mercury spacecraft only after it was proved safe.

VOA: special.2009.06.17

Austerity is the order of the day and it's not always popular as deadly riots in Greece recently proved.

VOA: standard.2010.06.16