It has to be proved that they are the guilty party.

尚需证明他们是有过错的一方。

《柯林斯英汉双解大词典》

At just 24, Rinngo Sheena has proved that she already is.

在只有24岁的年纪，椎名林檎证明她已经是了。

youdao

The alarmists say they have proved that violent media cause aggression.

危言耸听者说，他们已经证明了暴力媒体会引发敌对情绪。

youdao

Borman and Lovell proved that humans could survive in space for the time needed to get to the moon and back.

VOA: special.2009.07.01

It was impossible-- doctors and scientists showed, runners, athletes, the top-ones in the world proved that the doctors were right.

那是不可能的，医生和科学家证明了，跑手，运动员，世上顶尖选手证明了医生们是对的。

哈佛公开课 - 幸福课课程节选

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

Or we can turn to the local medical communities, which have proved that they can.

NEWYORKER: The Cost Conundrum

So today I'm pleased to say that we have proved that change is possible.

WHITEHOUSE: President Obama Signs National Defense Authorization Act

At the time it could not be proved that he was personally responsible for any killings.

BBC: Former Auschwitz Nazi guard Hans Lipschis found in Germany